{"title":"Standalone ECUs \u0026 Engine Management","description":null,"products":[{"product_id":"ls3-engine-controller-kit","title":"Chevrolet Performance LS3 Engine Controller Kit — Fits GM LS-Series Engines","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Chevrolet Performance Parts\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eChevrolet Performance Parts engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Chevrolet Performance Parts lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/Rm4E7pyM6YI\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eThe Ultimate LS3 Swap Solution\u003c\/h2\u003e\u003cp\u003eSimplify the complex wiring and tuning process of your LS3 engine swap with the Chevrolet Performance LS3 Engine Controller Kit. This comprehensive package provides everything you need to get your GM LS-series engine running smoothly and reliably. Designed for ease of installation, this kit takes the guesswork out of engine management, allowing you to focus on the build rather than troubleshooting electrical gremlins.\u003c\/p\u003e\u003ch3\u003eKit Components\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEngine Control Module (ECM)\u003c\/li\u003e\n\u003cli\u003eComplete Wiring Harness\u003c\/li\u003e\n\u003cli\u003eMounting Hardware\u003c\/li\u003e\n\u003cli\u003eElectronic Throttle Pedal Assembly\u003c\/li\u003e\n\u003cli\u003eEssential Engine Sensors\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis kit is specifically calibrated for the LS3 engine, ensuring optimal fuel mapping, ignition timing, and overall engine efficiency. By using genuine Chevrolet Performance components, you gain the assurance of factory-grade reliability and seamless compatibility with your engine's internal sensors. The included harness is clearly labeled, making the integration into your vehicle's chassis straightforward, even for those new to EFI conversions. Whether you are installing an LS3 into a classic muscle car, a truck, or a custom project vehicle, this controller kit provides the plug-and-play functionality required for a professional-grade installation. Experience the power and efficiency of the LS platform with the right management system. Find all your LS swap essentials at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Chevrolet Performance Parts products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/flywheel-dowel-locating-pin\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance Flywheel Dowel Locating Pin 0.437in x 0.875in — Fits GM Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/valve-cover-gasket-1\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance Valve Cover Gasket - Small Block Chevy Rubber 0.177in Thick\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/valve-cover-screw-sbc-w-center-bolt-covers\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance Valve Cover Bolt 1\/4-20 x 3-5\/8in — Fits SBC Center Bolt Covers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-roller-camshaft\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance SBC Hydraulic Roller Camshaft - 0.474\/0.510 Lift\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/valve-spring-shim-lt4\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance Valve Spring Shim 0.035in Thick — Fits 1992-97 GM LT-Series\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Chevrolet Performance LS3 Engine Controller Kit \\u2014 Fits GM LS-Series Engines\",\"description\":\"Simplify your LS3 swap with the Chevrolet Performance Engine Controller Kit. Includes harness, pedal, and sensors for a complete install. Buy at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Chevrolet Performance Parts\"},\"mpn\":\"19354328\",\"url\":\"https:\/\/ggcracing.com\/products\/ls3-engine-controller-kit\",\"offers\":{\"@type\":\"Offer\",\"price\":\"2167.43\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/ls3-engine-controller-kit\",\"sku\":\"FMQX_19354328\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Chevrolet Performance Parts\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Chevrolet+Performance+Parts\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Chevrolet Performance LS3 Engine Controller Kit \\u2014 Fits GM LS-Series Engines\",\"item\":\"https:\/\/ggcracing.com\/products\/ls3-engine-controller-kit\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Chevrolet Performance LS3 Engine Controller Kit \\u2014 Fits GM LS-Series Engines fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Chevrolet Performance Parts?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Chevrolet Performance LS3 Engine Controller Kit \\u2014 Fits GM LS-Series Engines?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Chevrolet Performance Parts","offers":[{"title":"Default Title","offer_id":40868536713300,"sku":"FMQX_19354328","price":2167.43,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/GMP19354328.jpg?v=1714295250"},{"product_id":"engine-module-controller-kit-ls-376-525hp","title":"Chevrolet Performance LS 376\/525HP Engine Controller Kit — For GM LS-Series Engines","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Chevrolet Performance Parts\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eChevrolet Performance Parts engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Chevrolet Performance Parts lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/Rm4E7pyM6YI\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eMaximize Performance with the LS 376\/525HP Engine Controller Kit\u003c\/h2\u003e\u003cp\u003eUnlock the full, exhilarating potential of your Chevrolet Performance LS 376\/525HP crate engine with this dedicated Engine Module Controller Kit. Designed specifically for this high-output powerplant, this comprehensive package provides everything needed to get your powerful GM LS-Series engine running flawlessly in any standalone application. Say goodbye to complex wiring diagrams and compatibility concerns; this kit is engineered for seamless integration, ensuring your 525 horsepower beast performs exactly as intended, delivering optimal power, torque, and reliability from the first start.\u003c\/p\u003e\u003ch3\u003ePrecision-Calibrated for Peak 525HP Output\u003c\/h3\u003e\u003cp\u003eThis controller kit is not a generic solution; it features an Engine Control Module (ECM) that is pre-programmed and meticulously calibrated to perfectly match the unique characteristics of the LS 376\/525HP engine. This specialized tuning ensures that fuel delivery, ignition timing, and all engine parameters are optimized for maximum horsepower and efficiency. The included, fully labeled wiring harness simplifies the electrical connections, making the installation process significantly smoother. Complete with a responsive electronic throttle pedal assembly, mounting hardware, and all necessary sensors, this kit is the ultimate foundation for a high-performance build.\u003c\/p\u003e\u003ch3\u003eComprehensive Components for Your 525HP LS Engine:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLS 376\/525HP Specific ECM:\u003c\/strong\u003e Pre-calibrated for peak performance and reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDedicated Wiring Harness:\u003c\/strong\u003e Simplifies connections for all engine sensors and components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectronic Throttle Pedal:\u003c\/strong\u003e Provides precise and immediate engine response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Sensor Suite:\u003c\/strong\u003e Includes all critical sensors for comprehensive engine management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Hardware:\u003c\/strong\u003e Ensures secure installation of the control module and accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play Design:\u003c\/strong\u003e Minimizes installation time and complexity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Ultimate Control for Your High-Output LS\u003c\/h3\u003e\u003cp\u003eWhen you invest in a potent engine like the LS 376\/525HP, you need an equally capable and reliable control system. This Chevrolet Performance Parts kit delivers OEM-level quality and performance, guaranteeing that your engine operates at its peak, whether on the street or the track. Trust in the engineering excellence that ensures perfect harmony between your engine and its electronics. For unparalleled performance and peace of mind in your GM LS-Series project, choose the controller kit that's built to perform. Find this and more high-performance solutions at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Chevrolet Performance Parts products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/flywheel-dowel-locating-pin\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance Flywheel Dowel Locating Pin 0.437in x 0.875in — Fits GM Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/valve-cover-gasket-1\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance Valve Cover Gasket - Small Block Chevy Rubber 0.177in Thick\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/valve-cover-screw-sbc-w-center-bolt-covers\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance Valve Cover Bolt 1\/4-20 x 3-5\/8in — Fits SBC Center Bolt Covers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-roller-camshaft\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance SBC Hydraulic Roller Camshaft - 0.474\/0.510 Lift\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/valve-spring-shim-lt4\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance Valve Spring Shim 0.035in Thick — Fits 1992-97 GM LT-Series\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Chevrolet Performance LS 376\/525HP Engine Controller Kit \\u2014 For GM LS-Series Engines\",\"description\":\"Optimize your LS 376\/525HP engine with this Chevrolet Performance controller kit. 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At GGCRACING we stock the full Chevrolet Performance Parts lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/fMpuoGrZpW8\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003ePrecision Control for Your 525HP LS\u003c\/h2\u003e\u003cp\u003eMaximize the output of your high-performance 6.2L 376\/525 HP LS engine with the Chevrolet Performance Engine Module Kit. This kit is specifically engineered to manage the unique demands of the 525 horsepower variant of the LS platform, ensuring that your engine operates at its peak potential. With factory-calibrated parameters, this controller kit eliminates the need for expensive custom tuning and provides a reliable, high-performance foundation for your vehicle.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHigh-Performance Engine Control Module\u003c\/li\u003e\n\u003cli\u003eCustom-Fit Wiring Harness\u003c\/li\u003e\n\u003cli\u003eThrottle Pedal Assembly\u003c\/li\u003e\n\u003cli\u003eMounting Brackets\u003c\/li\u003e\n\u003cli\u003eRequired Engine Sensors\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis kit is designed to handle the increased airflow and fuel requirements of the 525 HP crate engine, providing smooth idle, crisp throttle response, and maximum power delivery across the entire RPM range. The included harness is designed for a clean, professional installation, reducing the time spent in the garage. By utilizing a factory-engineered system, you ensure that your engine's safety features and performance characteristics are perfectly balanced. This is the ideal solution for anyone looking to push their LS-powered project to the limit while maintaining the reliability of a factory-backed system. Don't settle for aftermarket guesswork when you can have the precision of Chevrolet Performance. Upgrade your engine management today at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Chevrolet Performance Parts products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/flywheel-dowel-locating-pin\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance Flywheel Dowel Locating Pin 0.437in x 0.875in — Fits GM Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/valve-cover-gasket-1\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance Valve Cover Gasket - Small Block Chevy Rubber 0.177in Thick\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/valve-cover-screw-sbc-w-center-bolt-covers\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance Valve Cover Bolt 1\/4-20 x 3-5\/8in — Fits SBC Center Bolt Covers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-roller-camshaft\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance SBC Hydraulic Roller Camshaft - 0.474\/0.510 Lift\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/valve-spring-shim-lt4\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance Valve Spring Shim 0.035in Thick — Fits 1992-97 GM LT-Series\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Chevrolet Performance LS 6.2L 376\/525 HP Engine Module Kit \\u2014 Fits LS-Series\",\"description\":\"Optimize your 6.2L 376\/525 HP LS engine with this complete controller kit. 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Shop GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Chevrolet Performance Parts\"},\"mpn\":\"19354332\",\"url\":\"https:\/\/ggcracing.com\/products\/engine-module-kit-ls-6-2l-376-525-hp-engine\",\"offers\":{\"@type\":\"Offer\",\"price\":\"2225.39\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/engine-module-kit-ls-6-2l-376-525-hp-engine\",\"sku\":\"FMQX_19354332\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Chevrolet Performance Parts\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Chevrolet+Performance+Parts\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Chevrolet Performance LS 6.2L 376\/525 HP Engine Module Kit \\u2014 Fits LS-Series\",\"item\":\"https:\/\/ggcracing.com\/products\/engine-module-kit-ls-6-2l-376-525-hp-engine\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Chevrolet Performance LS 6.2L 376\/525 HP Engine Module Kit \\u2014 Fits LS-Series fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Chevrolet Performance Parts?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Chevrolet Performance LS 6.2L 376\/525 HP Engine Module Kit \\u2014 Fits LS-Series?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Chevrolet Performance Parts","offers":[{"title":"Default Title","offer_id":40868538843220,"sku":"FMQX_19354332","price":2225.39,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/GMP19354332.jpg?v=1714295266"},{"product_id":"engine-controller-kit","title":"Chevrolet Performance Gen V LT Engine Controller Kit — Fits GM LT-Series Engines","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Chevrolet Performance Parts\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eChevrolet Performance Parts engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Chevrolet Performance Parts lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/WvV6LVEpZU0\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUnlock Peak Performance with the GM Gen V LT Controller Kit\u003c\/h2\u003e\u003cp\u003eTake the guesswork out of your engine swap or build with the Chevrolet Performance Gen V LT Engine Controller Kit. Engineered specifically for GM’s high-output Gen V LT-series powerplants, this comprehensive kit provides everything you need to manage your engine’s electronic systems with factory-level precision. Whether you are performing a modern engine swap into a classic chassis or upgrading a track-focused build, this controller ensures optimal fuel delivery, ignition timing, and overall engine health.\u003c\/p\u003e\u003ch3\u003eWhat is Included in the Kit?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEngine Control Module (ECM) pre-programmed for peak performance\u003c\/li\u003e\n\u003cli\u003eHigh-quality wiring harness for seamless integration\u003c\/li\u003e\n\u003cli\u003eElectronic throttle pedal assembly for precise input\u003c\/li\u003e\n\u003cli\u003eEssential sensors required for engine operation\u003c\/li\u003e\n\u003cli\u003eMounting hardware for a clean, professional installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis kit eliminates the frustration of sourcing individual components, providing a plug-and-play solution that saves you time and ensures compatibility. By utilizing genuine Chevrolet Performance parts, you gain the reliability and durability expected from factory-engineered hardware. The system is designed to handle the rigorous demands of high-performance driving, ensuring your LT engine runs smoothly under all conditions. Experience the perfect balance of power, efficiency, and reliability with this essential upgrade. For all your high-performance engine management needs, trust the experts at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Chevrolet Performance Parts products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/flywheel-dowel-locating-pin\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance Flywheel Dowel Locating Pin 0.437in x 0.875in — Fits GM Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/valve-cover-gasket-1\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance Valve Cover Gasket - Small Block Chevy Rubber 0.177in Thick\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/valve-cover-screw-sbc-w-center-bolt-covers\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance Valve Cover Bolt 1\/4-20 x 3-5\/8in — Fits SBC Center Bolt Covers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-roller-camshaft\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance SBC Hydraulic Roller Camshaft - 0.474\/0.510 Lift\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/valve-spring-shim-lt4\" style=\"color:#0066cc;text-decoration:none;\"\u003eChevrolet Performance Valve Spring Shim 0.035in Thick — Fits 1992-97 GM LT-Series\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Chevrolet Performance Gen V LT Engine Controller Kit \\u2014 Fits GM LT-Series Engines\",\"description\":\"Unlock your GM Gen V LT engine's full potential with this complete Chevrolet Performance Controller Kit. Includes harness, sensors, and pedal. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Chevrolet Performance Parts\"},\"mpn\":\"19419241\",\"url\":\"https:\/\/ggcracing.com\/products\/engine-controller-kit\",\"offers\":{\"@type\":\"Offer\",\"price\":\"3052.24\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/engine-controller-kit\",\"sku\":\"FMQX_19419241\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Chevrolet Performance Parts\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Chevrolet+Performance+Parts\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Chevrolet Performance Gen V LT Engine Controller Kit \\u2014 Fits GM LT-Series Engines\",\"item\":\"https:\/\/ggcracing.com\/products\/engine-controller-kit\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Chevrolet Performance Gen V LT Engine Controller Kit \\u2014 Fits GM LT-Series Engines fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Chevrolet Performance Parts?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Chevrolet Performance Gen V LT Engine Controller Kit \\u2014 Fits GM LT-Series Engines?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Chevrolet Performance Parts","offers":[{"title":"Default Title","offer_id":40868567908436,"sku":"FMQX_19419241","price":3052.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/GMP19419241.jpg?v=1714295361"},{"product_id":"terminator-x-max-engine-management-systems","title":"Holley EFI Terminator X-Max Engine Management System — 58x LS Drive By Wire","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/o_iD31EWv9o\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eTake Command with Terminator X-Max\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X-Max Engine Management System is the ultimate solution for controlling your 58x reluctor wheel GM LS engine. This comprehensive kit provides everything you need to manage fuel, spark, and transmission control in one powerful, user-friendly package. With integrated Drive-By-Wire (DBW) support and a vibrant 3.5-inch touchscreen, you have total control over your engine's performance at your fingertips.\u003c\/p\u003e\u003ch3\u003eAdvanced Features for Maximum Power\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eComplete engine management for 58x GM LS-Series engines\u003c\/li\u003e\n\u003cli\u003eIncludes 3.5-inch handheld touchscreen for real-time tuning\u003c\/li\u003e\n\u003cli\u003eIntegrated transmission control for automatic gearboxes\u003c\/li\u003e\n\u003cli\u003eDrive-By-Wire (DBW) throttle body support\u003c\/li\u003e\n\u003cli\u003eSelf-learning fuel strategies for quick and easy setup\u003c\/li\u003e\n\u003cli\u003eComprehensive wiring harness included for a complete install\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are building a daily driver or a high-horsepower race car, the Terminator X-Max offers the flexibility and power to meet your goals. The system's self-learning capabilities ensure that your engine runs smoothly from the first start, while the advanced tuning software allows for deep customization as your build evolves. Experience the precision of modern EFI technology and unlock the true potential of your LS engine. With robust hardware and intuitive software, this system is designed to handle the demands of modern performance. Elevate your driving experience with the industry-leading engine management solutions available at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X-Max Engine Management System \\u2014 58x LS Drive By Wire\",\"description\":\"Take control of your 58x GM LS engine with the Holley EFI Terminator X-Max. Includes 3.5-inch touchscreen and DBW support. Order today at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-928\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-engine-management-systems\",\"offers\":{\"@type\":\"Offer\",\"price\":\"2099.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-engine-management-systems\",\"sku\":\"GVMR_550-928\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X-Max Engine Management System \\u2014 58x LS Drive By Wire\",\"item\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-engine-management-systems\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X-Max Engine Management System \\u2014 58x LS Drive By Wire fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X-Max Engine Management System \\u2014 58x LS Drive By Wire?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880348725332,"sku":"GVMR_550-928","price":2199.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-928.jpg?v=1714509691"},{"product_id":"terminator-x-max-mpfi-kit-w-ls1-ls6-dbw","title":"Holley EFI Terminator X-Max MPFI Kit — 24x LS1\/LS6 Drive By Wire","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9l5g4F54SRM\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003ePrecision Control for 24x LS Engines\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X-Max MPFI Kit is specifically engineered for 24x reluctor wheel GM LS1 and LS6 engines. This system provides a complete engine management solution, combining advanced fuel injection control with transmission management and Drive-By-Wire (DBW) capability. It is the perfect upgrade for those looking to modernize their classic LS setup with reliable, high-performance electronics.\u003c\/p\u003e\u003ch3\u003eEngineered for Performance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned for 24x GM LS1\/LS6 applications\u003c\/li\u003e\n\u003cli\u003eIncludes 3.5-inch touchscreen display for easy monitoring and tuning\u003c\/li\u003e\n\u003cli\u003eIntegrated transmission control for seamless shifting\u003c\/li\u003e\n\u003cli\u003eSupports Drive-By-Wire (DBW) for modern throttle response\u003c\/li\u003e\n\u003cli\u003eSelf-learning fuel maps for optimized air-fuel ratios\u003c\/li\u003e\n\u003cli\u003eComplete wiring harness for a streamlined installation process\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Terminator X-Max system is built to handle the complexities of high-performance engines while remaining accessible for the average enthusiast. With its intuitive interface and powerful self-learning algorithms, you can spend less time tuning and more time driving. The inclusion of transmission control makes this kit an excellent choice for builds utilizing modern automatic transmissions, providing a cohesive management system that optimizes both engine and drivetrain performance. Whether you are hitting the drag strip or cruising the streets, this kit delivers consistent, reliable power. Trust in the proven performance of Holley EFI and find your next upgrade at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X-Max MPFI Kit \\u2014 24x LS1\/LS6 Drive By Wire\",\"description\":\"Upgrade your 24x GM LS1\/LS6 engine with the Holley EFI Terminator X-Max MPFI Kit. Includes DBW and transmission control. Shop now at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-932\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-kit-w-ls1-ls6-dbw\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1708.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-kit-w-ls1-ls6-dbw\",\"sku\":\"GVMR_550-932\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X-Max MPFI Kit \\u2014 24x LS1\/LS6 Drive By Wire\",\"item\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-kit-w-ls1-ls6-dbw\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X-Max MPFI Kit \\u2014 24x LS1\/LS6 Drive By Wire fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X-Max MPFI Kit \\u2014 24x LS1\/LS6 Drive By Wire?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880348987476,"sku":"GVMR_550-932","price":1698.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-932.jpg?v=1714509700"},{"product_id":"terminator-x-max-mpfi-system-w-trans-control","title":"Holley EFI Terminator X-Max MPFI System with Transmission Control — Fits GM LS Engines","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9l5g4F54SRM\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eMaster Your Engine Performance with Holley EFI Terminator X-Max\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X-Max MPFI System is the ultimate engine management solution for enthusiasts looking to modernize their GM LS platform. Designed for high-performance street and track applications, this system provides full control over your engine's fuel and ignition timing, while uniquely integrating transmission control for popular 4L60E and 4L80E automatic transmissions.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Trans Control:\u003c\/strong\u003e Seamlessly manage your 4L60E or 4L80E transmission shifting and torque converter lockup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.5-inch Touchscreen:\u003c\/strong\u003e Includes a high-resolution handheld display for easy tuning, data logging, and real-time monitoring of vital engine vitals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play Harness:\u003c\/strong\u003e Simplified installation with factory-style connectors, reducing wiring complexity for a cleaner engine bay.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning Capabilities:\u003c\/strong\u003e Advanced software automatically adjusts your fuel map, allowing for a smooth idle and crisp throttle response without needing a professional dyno tune immediately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpandability:\u003c\/strong\u003e Easily add sensors, nitrous control, or boost management as your build evolves.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are performing an LS swap or upgrading an existing fuel-injected setup, this system provides the reliability and precision required for modern performance. Experience superior driveability and power delivery with the industry-leading technology found in every Holley EFI kit. Find all your high-performance engine management needs at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X-Max MPFI System with Transmission Control \\u2014 Fits GM LS Engines\",\"description\":\"Upgrade your engine management with the Holley EFI Terminator X-Max system. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X-Max MPFI System with Transmission Control \\u2014 Fits GM LS E?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880349020244,"sku":"GVMR_550-920","price":1698.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-920.jpg?v=1714509709"},{"product_id":"terminator-x-mpfi-kit-gm-ls2-ls3-late-truck","title":"Holley EFI Terminator X MPFI Kit — Fits GM LS2\/LS3 Late Truck Engines","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9l5g4F54SRM\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eTake Command of Your GM LS2\/LS3 with Terminator X\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X MPFI Kit is the ultimate engine management upgrade for GM LS2 and LS3 late-model truck engines. This comprehensive kit is designed to replace your factory ECU with a powerful, programmable system that unlocks the full potential of your engine. Whether you are running a stock engine or a modified setup with a camshaft and headers, Terminator X provides the tools you need for precision tuning.\u003c\/p\u003e\u003ch3\u003eAdvanced Features for Modern Performance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e58x Reluctor Support:\u003c\/strong\u003e Specifically calibrated for late-model GM LS engines utilizing the 58x reluctor wheel for accurate ignition timing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.5-inch Touchscreen:\u003c\/strong\u003e Includes a user-friendly handheld display for real-time data logging, gauge monitoring, and basic tuning adjustments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Wiring Harness:\u003c\/strong\u003e Comes with a plug-and-play harness designed to integrate seamlessly with factory sensors, saving you hours of installation time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWideband O2 Sensor:\u003c\/strong\u003e Includes a Bosch LSU 4.9 wideband O2 sensor for precise air\/fuel ratio monitoring and self-learning capabilities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully Programmable:\u003c\/strong\u003e Access advanced features like nitrous control, boost control, and custom fan settings through the intuitive software interface.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUpgrading to the Terminator X system allows you to eliminate the limitations of the factory computer. With its robust software and reliable hardware, you can achieve better throttle response, improved fuel economy, and increased horsepower. It is the perfect choice for any LS-powered project that demands consistent performance. Get your engine running right with expert support from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X MPFI Kit \\u2014 Fits GM LS2\/LS3 Late Truck Engines\",\"description\":\"Take control of your GM LS2\/LS3 engine with the Holley EFI Terminator X MPFI Kit. 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See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880349577300,"sku":"GVMR_550-910","price":1599.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-910.jpg?v=1714509776"},{"product_id":"terminator-x-mpfi-kit-gm-ls1-w-ev6-inj-harness","title":"Holley EFI Terminator X MPFI Kit with EV6 Injector Harness — Fits GM LS1\/LS6","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/x56WMFYFNEc\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHigh-Performance Tuning for GM LS1\/LS6 Engines\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X MPFI Kit is specifically tailored for the iconic GM LS1 and LS6 engines, offering a powerful and affordable solution for engine management. This kit is perfect for enthusiasts who want to move away from the limitations of the stock PCM and gain full control over their engine's performance parameters. With the included EV6 injector harness, installation is straightforward for those running modern fuel injectors.\u003c\/p\u003e\u003ch3\u003eWhy Choose Terminator X for Your LS1\/LS6?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized for LS1\/LS6:\u003c\/strong\u003e Specifically designed to handle the firing order and sensor inputs of the classic GM LS1 and LS6 platforms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEV6 Injector Harness:\u003c\/strong\u003e Includes the correct harness for EV6-style fuel injectors, ensuring a secure and reliable connection for optimal fuel delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Learning EFI:\u003c\/strong\u003e The system automatically adjusts your fuel map based on real-time data, making it easier than ever to achieve a perfect tune.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Logging:\u003c\/strong\u003e Built-in data logging allows you to record engine performance, helping you diagnose issues or refine your tune for the track or street.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact ECU:\u003c\/strong\u003e The small, weather-resistant ECU can be mounted virtually anywhere in the vehicle, keeping your engine bay clean and organized.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are restoring a classic F-body or building a custom LS-powered vehicle, the Terminator X system provides the flexibility and power you need. Experience smoother idle, better throttle response, and increased reliability with this proven EFI solution. Take your build to the next level with the best parts available at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X MPFI Kit with EV6 Injector Harness \\u2014 Fits GM LS1\/LS6\",\"description\":\"Optimize your GM LS1\/LS6 engine with the Holley EFI Terminator X MPFI Kit. Includes EV6 injector harness for easy installation. Shop today at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-909T\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-gm-ls1-w-ev6-inj-harness\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1258.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-gm-ls1-w-ev6-inj-harness\",\"sku\":\"GVMR_550-909T\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X MPFI Kit with EV6 Injector Harness \\u2014 Fits GM LS1\/LS6\",\"item\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-gm-ls1-w-ev6-inj-harness\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X MPFI Kit with EV6 Injector Harness \\u2014 Fits GM LS1\/LS6 fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X MPFI Kit with EV6 Injector Harness \\u2014 Fits GM LS1\/LS6?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880349610068,"sku":"GVMR_550-909T","price":1303.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-909T.jpg?v=1714509786"},{"product_id":"terminator-x-max-mpfi-system-gm-ls1","title":"Holley EFI Terminator X Max MPFI System — Fits GM LS1, Drive-by-Wire, Transmission Control","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eUltimate Control for Your GM LS1 with Terminator X Max\u003c\/h2\u003e\u003cp\u003eUnlock the full potential of your GM LS1 engine with the \u003cb\u003eHolley EFI Terminator X Max MPFI System\u003c\/b\u003e. This top-tier engine management solution goes beyond basic EFI, offering integrated Drive-by-Wire (DBW) throttle control and comprehensive transmission control, making it the ideal choice for modern LS swaps and high-performance builds. Designed for engines with a 24x reluctor wheel, it provides unparalleled functionality and ease of use.\u003c\/p\u003e\u003ch3\u003eIntegrated Drive-by-Wire and Transmission Management\u003c\/h3\u003e\u003cp\u003eThe Terminator X Max system delivers a complete, sophisticated control package. It includes the powerful Engine Control Module (ECM), a full wiring harness, and the capability to manage both your Drive-by-Wire throttle body and electronic transmissions directly. This eliminates the need for separate controllers, simplifying wiring and tuning while providing a seamless, factory-like driving experience. Enjoy precise throttle modulation and optimized shift strategies, all from a single, integrated system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eEngine Compatibility:\u003c\/b\u003e GM LS1 Engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReluctor Wheel:\u003c\/b\u003e 24x\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSystem Type:\u003c\/b\u003e Multi-Port Fuel Injection (MPFI)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKey Features:\u003c\/b\u003e Drive-by-Wire (DBW) Control, Transmission Control, Self-tuning, Data Logging\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComponents:\u003c\/b\u003e Engine Control Module (ECM), Wiring Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Modern LS Swaps, Performance Builds, Custom Vehicles requiring integrated control\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor those who demand the absolute best in engine and transmission management, the Holley EFI Terminator X Max is the definitive choice. Elevate your LS1 project to new heights with this advanced system, available at GGCRACING.COM.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X Max MPFI System \\u2014 Fits GM LS1, Drive-by-Wire, Transmission Control\",\"description\":\"Experience ultimate control with the Holley EFI Terminator X Max MPFI System for GM LS1. 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Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-934T\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-system-gm-ls1\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1843.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-system-gm-ls1\",\"sku\":\"GVMR_550-934T\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X Max MPFI System \\u2014 Fits GM LS1, Drive-by-Wire, Transmission Control\",\"item\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-system-gm-ls1\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X Max MPFI System \\u2014 Fits GM LS1, Drive-by-Wire, Transmissi fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X Max MPFI System \\u2014 Fits GM LS1, Drive-by-Wire, Transmissi?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880349970516,"sku":"GVMR_550-934T","price":1826.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-934T.jpg?v=1714509795"},{"product_id":"efi-terminator-x-max-gm-ls1-ls6-w-trans-control","title":"Holley EFI Terminator X Max GM LS1\/LS6 24x EFI System w\/Trans Control — Fits GM LS-Series Engines","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/tkD3e9BOQ0A\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUnlock Precision Performance with Holley EFI Terminator X Max\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X Max is the ultimate engine management solution for GM LS1 and LS6 enthusiasts looking to modernize their 24x reluctor wheel setups. This comprehensive kit provides complete control over your engine and transmission, ensuring your LS build runs at peak efficiency. Whether you are hitting the track or cruising the street, this system offers the tuning flexibility required for high-performance applications.\u003c\/p\u003e\u003ch3\u003eKey Features and Technical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEngineered specifically for GM LS1\/LS6 engines with 24x reluctor wheels\u003c\/li\u003e\n\u003cli\u003eIntegrated transmission control for seamless shifting performance\u003c\/li\u003e\n\u003cli\u003eAdvanced Drive-By-Wire (DBW) capability for modern throttle response\u003c\/li\u003e\n\u003cli\u003ePlug-and-play wiring harness designed for simplified installation\u003c\/li\u003e\n\u003cli\u003eReal-time data logging and diagnostic capabilities\u003c\/li\u003e\n\u003cli\u003eFully programmable fuel and ignition mapping\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBy replacing your outdated factory ECU with the Terminator X Max, you gain access to a powerful interface that simplifies complex tuning tasks. The system is designed to handle the demands of modified engines, providing consistent performance across all RPM ranges. With its robust construction and intuitive software, this kit is the gold standard for LS engine management. Experience the difference in throttle response and power delivery that only a professional-grade EFI system can provide. For all your high-performance tuning needs, trust the experts at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X Max GM LS1\/LS6 24x EFI System w\/Trans Control \\u2014 Fits GM LS-Series Engines\",\"description\":\"Upgrade your GM LS1\/LS6 engine with the Holley EFI Terminator X Max. 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Shop GGCRACING today!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-916T\",\"url\":\"https:\/\/ggcracing.com\/products\/efi-terminator-x-max-gm-ls1-ls6-w-trans-control\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1663.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/efi-terminator-x-max-gm-ls1-ls6-w-trans-control\",\"sku\":\"GVMR_550-916T\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X Max GM LS1\/LS6 24x EFI System w\/Trans Control \\u2014 Fits GM LS-Series Engines\",\"item\":\"https:\/\/ggcracing.com\/products\/efi-terminator-x-max-gm-ls1-ls6-w-trans-control\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X Max GM LS1\/LS6 24x EFI System w\/Trans Control \\u2014 Fits GM  fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X Max GM LS1\/LS6 24x EFI System w\/Trans Control \\u2014 Fits GM ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880350167124,"sku":"GVMR_550-916T","price":1949.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-916T.jpg?v=1714509805"},{"product_id":"terminator-x-max-mpfi-kit-ls1-ls6-w-trans-cont","title":"Holley EFI Terminator X Max MPFI Kit GM LS1\/LS6 24x w\/Touchscreen — Fits GM LS-Series Engines","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/tkD3e9BOQ0A\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eMaster Your LS Engine with the Holley EFI Terminator X Max MPFI Kit\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X Max MPFI Kit is designed for the serious builder who demands total control over their GM LS1 or LS6 engine. Featuring a 24x reluctor wheel compatibility and integrated transmission control, this kit is the most comprehensive solution for modernizing your powertrain. The included 3.5-inch touchscreen allows for real-time monitoring and on-the-fly adjustments, making it easier than ever to dial in your tune.\u003c\/p\u003e\u003ch3\u003eWhy Choose the Terminator X Max?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIncludes 3.5-inch handheld touchscreen for easy tuning\u003c\/li\u003e\n\u003cli\u003eSupports 24x reluctor GM LS1\/LS6 engines\u003c\/li\u003e\n\u003cli\u003eIntegrated transmission control for automatic gear management\u003c\/li\u003e\n\u003cli\u003eDrive-By-Wire (DBW) support for precise throttle control\u003c\/li\u003e\n\u003cli\u003eComprehensive wiring harness for a clean, professional install\u003c\/li\u003e\n\u003cli\u003eAdvanced self-learning fuel strategies\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis MPFI kit removes the guesswork from engine tuning. Whether you are running a stock LS or a heavily modified build, the Terminator X Max adapts to your specific needs. The system is built to withstand the rigors of racing while providing the drivability required for daily use. With its user-friendly interface and powerful processing capabilities, you can optimize your air-fuel ratios and ignition timing with confidence. Elevate your vehicle's performance and reliability with this premium EFI package. For top-tier automotive components, look no further than GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X Max MPFI Kit GM LS1\/LS6 24x w\/Touchscreen \\u2014 Fits GM LS-Series Engines\",\"description\":\"Take control of your GM LS1\/LS6 with the Holley EFI Terminator X Max MPFI Kit. Includes 3.5-inch touchscreen and trans control. Order at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-916\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-kit-ls1-ls6-w-trans-cont\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1899.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-kit-ls1-ls6-w-trans-cont\",\"sku\":\"GVMR_550-916\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X Max MPFI Kit GM LS1\/LS6 24x w\/Touchscreen \\u2014 Fits GM LS-Series Engines\",\"item\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-kit-ls1-ls6-w-trans-cont\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X Max MPFI Kit GM LS1\/LS6 24x w\/Touchscreen \\u2014 Fits GM LS-S fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X Max MPFI Kit GM LS1\/LS6 24x w\/Touchscreen \\u2014 Fits GM LS-S?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880350232660,"sku":"GVMR_550-916","price":1698.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-916.jpg?v=1714509814"},{"product_id":"terminator-x-mpfi-kit-gm-ls2-ls3-truck","title":"Holley EFI Terminator X Max MPFI Kit GM LS2\/LS3 58x w\/Touchscreen — Fits GM LS-Series Engines","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/tkD3e9BOQ0A\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHigh-Performance Tuning for GM LS2 and LS3 Engines\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X Max MPFI Kit is the premier choice for owners of GM LS2 and LS3 engines utilizing a 58x reluctor wheel. This system is engineered to provide unmatched control over your engine's vitals, ensuring maximum power output and reliable performance. With the included 3.5-inch touchscreen, you can monitor engine parameters and make adjustments without the need for a laptop, making it perfect for both track-side tuning and street driving.\u003c\/p\u003e\u003ch3\u003eAdvanced Features for Modern LS Builds\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOptimized for GM LS2\/LS3 engines with 58x reluctor wheels\u003c\/li\u003e\n\u003cli\u003e3.5-inch touchscreen display for intuitive navigation\u003c\/li\u003e\n\u003cli\u003eDrive-By-Wire (DBW) compatibility for modern throttle systems\u003c\/li\u003e\n\u003cli\u003eFull transmission control integration\u003c\/li\u003e\n\u003cli\u003eHigh-speed data logging for detailed performance analysis\u003c\/li\u003e\n\u003cli\u003eSimplified wiring harness for efficient installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Terminator X Max is designed to bridge the gap between complex racing ECUs and factory limitations. By providing a user-friendly platform that doesn't sacrifice power or precision, Holley has created a system that is ideal for any LS2 or LS3 enthusiast. Whether you are building a high-horsepower drag car or a refined street machine, this kit provides the tools necessary to achieve your performance goals. The self-learning fuel strategy helps you get up and running quickly, while the advanced tuning options allow for endless customization. Upgrade your engine management system today with the best in the industry at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X Max MPFI Kit GM LS2\/LS3 58x w\/Touchscreen \\u2014 Fits GM LS-Series Engines\",\"description\":\"Upgrade your GM LS2\/LS3 with the Holley EFI Terminator X Max. Includes 58x support, touchscreen, and DBW. Get your performance parts at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-931\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-gm-ls2-ls3-truck\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1899.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-gm-ls2-ls3-truck\",\"sku\":\"GVMR_550-931\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X Max MPFI Kit GM LS2\/LS3 58x w\/Touchscreen \\u2014 Fits GM LS-Series Engines\",\"item\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-gm-ls2-ls3-truck\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X Max MPFI Kit GM LS2\/LS3 58x w\/Touchscreen \\u2014 Fits GM LS-S fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X Max MPFI Kit GM LS2\/LS3 58x w\/Touchscreen \\u2014 Fits GM LS-S?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880350363732,"sku":"GVMR_550-931","price":1698.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-931.jpg?v=1714509824"},{"product_id":"terminator-x-mpfi-kit-gm-ls2-ls3-late-truck-1","title":"Holley EFI Terminator X MPFI Kit — Fits GM LS2\/LS3 Late Truck Engines with 58x Reluctor","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9l5g4F54SRM\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eEssential Engine Management: Holley EFI Terminator X MPFI Kit for LS2\/LS3 Late Trucks\u003c\/h2\u003e\u003cp\u003eOptimize the core performance of your GM LS2 or LS3 late model truck engine with the Holley EFI Terminator X MPFI Kit (MPN: 550-905T). This streamlined engine control system provides the fundamental building blocks for superior multi-port fuel injection management. Designed specifically for 58x reluctor wheel applications common in these truck platforms, it delivers reliable and precise control without unnecessary complexities.\u003c\/p\u003e\u003ch3\u003eCore Performance Features\u003c\/h3\u003e\u003cp\u003eThe Terminator X system focuses on delivering robust engine management where it counts, ensuring your LS2\/LS3 truck operates at its best:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e58x Reluctor Compatibility:\u003c\/b\u003e Perfect fit for late-model LS2 and LS3 truck engines, ensuring accurate crank and cam signal interpretation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSelf-Learning Fuel Strategy:\u003c\/b\u003e Simplifies initial setup and continuously optimizes fuel delivery and ignition timing, adapting to your engine's specific needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComprehensive Wiring Harness:\u003c\/b\u003e A high-quality, application-specific wiring harness is included, making installation straightforward and reliable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRobust Engine Control:\u003c\/b\u003e Provides precise control over fuel and spark, essential for maximizing horsepower and torque while maintaining efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTailored for LS2\/LS3 Late Truck Engines\u003c\/h3\u003e\u003cp\u003eThis Holley EFI Terminator X kit is an excellent choice for truck owners seeking a powerful and dependable engine management upgrade for their LS2 or LS3. It's ideal for those who prioritize core functionality and performance gains without the need for an integrated touchscreen, allowing for a more focused and potentially cost-effective build. Its compatibility with the 58x reluctor ensures it's a direct fit for many popular late-model GM truck applications, providing a solid foundation for any performance build.\u003c\/p\u003e\u003ch3\u003eThe Holley EFI Advantage\u003c\/h3\u003e\u003cp\u003eChoosing the Holley EFI Terminator X means leveraging decades of performance engineering. This kit offers a significant upgrade over stock systems, providing finer control over your engine's parameters, leading to improved throttle response, enhanced power delivery, and better overall drivability. It’s a smart investment for anyone serious about getting the most out of their LS2\/LS3 late truck engine, backed by Holley's reputation for quality and performance.\u003c\/p\u003e\u003cp\u003eFind all your high-performance engine components at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X MPFI Kit \\u2014 Fits GM LS2\/LS3 Late Truck Engines with 58x Reluctor\",\"description\":\"Upgrade your GM LS2\/LS3 late truck with the Holley EFI Terminator X MPFI Kit. Essential engine management with 58x reluctor support for enhanced performance. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-905T\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-gm-ls2-ls3-late-truck-1\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1258.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-gm-ls2-ls3-late-truck-1\",\"sku\":\"GVMR_550-905T\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X MPFI Kit \\u2014 Fits GM LS2\/LS3 Late Truck Engines with 58x Reluctor\",\"item\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-gm-ls2-ls3-late-truck-1\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X MPFI Kit \\u2014 Fits GM LS2\/LS3 Late Truck Engines with 58x R fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X MPFI Kit \\u2014 Fits GM LS2\/LS3 Late Truck Engines with 58x R?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880350462036,"sku":"GVMR_550-905T","price":1231.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-905T.jpg?v=1714509833"},{"product_id":"terminator-x-mpfi-kit-gm-ls2-ls3-truck-1","title":"Holley EFI Terminator X MPFI Kit GM LS2\/LS3 58x w\/Touchscreen — Fits GM LS-Series Engines","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/tkD3e9BOQ0A\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003ePrecision Engine Management: Holley EFI Terminator X for LS2\/LS3\u003c\/h2\u003e\u003cp\u003eTake command of your GM LS2 or LS3 engine with the Holley EFI Terminator X MPFI Kit. Designed specifically for 58x reluctor wheel applications, this system offers a robust and reliable way to manage your engine's fuel and ignition. The kit comes complete with a 3.5-inch touchscreen, allowing you to easily view engine data and modify tunes on the fly. It is the perfect solution for those looking to ditch the factory ECU in favor of a more capable, programmable system.\u003c\/p\u003e\u003ch3\u003eTechnical Highlights\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned for GM LS2\/LS3 engines with 58x reluctor wheels\u003c\/li\u003e\n\u003cli\u003eIncludes 3.5-inch handheld touchscreen for easy interface\u003c\/li\u003e\n\u003cli\u003eAdvanced self-learning fuel management\u003c\/li\u003e\n\u003cli\u003ePlug-and-play wiring harness for simplified setup\u003c\/li\u003e\n\u003cli\u003eHigh-resolution data logging for performance tracking\u003c\/li\u003e\n\u003cli\u003eCompact, durable ECU housing\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Terminator X system is renowned for its ease of use and powerful performance capabilities. By streamlining the tuning process, it allows you to spend more time driving and less time troubleshooting. The system's ability to handle custom fuel maps and ignition curves makes it a versatile choice for a wide range of engine builds. Whether you are running a stock engine or a mild performance setup, the Terminator X provides the stability and power you need. Experience professional-level engine management that fits your budget and your build. Find all your essential performance upgrades at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X MPFI Kit GM LS2\/LS3 58x w\/Touchscreen \\u2014 Fits GM LS-Series Engines\",\"description\":\"Optimize your GM LS2\/LS3 engine with the Holley EFI Terminator X. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X MPFI Kit GM LS2\/LS3 58x w\/Touchscreen \\u2014 Fits GM LS-Serie?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880350527572,"sku":"GVMR_550-905","price":1358.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-905.jpg?v=1714509842"},{"product_id":"terminator-x-mpfi-kit-gm-ls-early-truck","title":"Holley EFI Terminator X MPFI Kit GM LS Early Truck — For 24x Reluctor GM LS-Series","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eModern EFI for Your Early GM LS Truck with Holley EFI Terminator X\u003c\/h2\u003e\u003cp\u003eRevitalize your early model GM LS truck with the Holley EFI Terminator X MPFI Kit. This robust multi-port fuel injection system is specifically designed for 24x reluctor wheel GM LS-Series engines, providing a straightforward and effective upgrade from older, less efficient systems. Experience improved cold starts, smoother idle, and enhanced throttle response, bringing modern performance and reliability to your classic or early-generation LS truck.\u003c\/p\u003e\u003ch3\u003eStreamlined Engine Management for Early LS Engines\u003c\/h3\u003e\u003cp\u003eThe Terminator X system features a powerful Engine Control Module (ECM) that simplifies engine management for your early LS truck. Without the complexity of a touchscreen, this kit focuses on core functionality and ease of installation, making it perfect for builders who prefer a clean, no-frills setup. The included wiring harness is pre-terminated and clearly labeled, ensuring a hassle-free installation process and reliable operation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eEngine Control Module (ECM):\u003c\/b\u003e Core control unit for dependable engine performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e24x Reluctor Wheel Specific:\u003c\/b\u003e Perfectly matched for early GM LS-Series engines with 24x crankshaft reluctor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-Quality Wiring Harness:\u003c\/b\u003e Pre-terminated for simplified and secure installation in GM LS-Series trucks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOptimized Fueling:\u003c\/b\u003e Delivers precise fuel control for improved efficiency and power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Construction:\u003c\/b\u003e Built to withstand the demands of truck applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReliable Performance, Simplified Installation\u003c\/h3\u003e\u003cp\u003eThe Holley EFI Terminator X MPFI Kit for early GM LS trucks offers a significant performance upgrade without the need for extensive modifications. Enjoy the benefits of modern electronic fuel injection, including better fuel economy, consistent power delivery, and reduced emissions. This kit is the ideal solution for those seeking a reliable and powerful EFI system for their 24x reluctor early LS truck. Find your perfect upgrade at GGCRACING.COM.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X MPFI Kit GM LS Early Truck \\u2014 For 24x Reluctor GM LS-Series\",\"description\":\"Upgrade your early model GM LS truck with the Holley EFI Terminator X MPFI Kit. 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Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-904T\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-gm-ls-early-truck\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1258.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-gm-ls-early-truck\",\"sku\":\"GVMR_550-904T\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X MPFI Kit GM LS Early Truck \\u2014 For 24x Reluctor GM LS-Series\",\"item\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-gm-ls-early-truck\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X MPFI Kit GM LS Early Truck \\u2014 For 24x Reluctor GM LS-Seri fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X MPFI Kit GM LS Early Truck \\u2014 For 24x Reluctor GM LS-Seri?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880350560340,"sku":"GVMR_550-904T","price":1231.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-904T.jpg?v=1714509852"},{"product_id":"terminator-x-mpfi-kit-early-ls-truck","title":"Holley EFI Terminator X MPFI Kit Early LS Truck 24x w\/Touchscreen — Fits GM LS-Series Engines","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/cu3zp41pOjY\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eModernize Your Early GM LS Truck with Terminator X\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X MPFI Kit is the ideal upgrade for early GM LS truck engines equipped with a 24x reluctor wheel. This system provides a modern, high-performance engine management solution that replaces outdated factory electronics. With the included 3.5-inch touchscreen, you gain full control over your engine's tuning, allowing you to optimize performance for towing, off-roading, or street driving. It is the ultimate tool for unlocking the hidden potential of your LS truck engine.\u003c\/p\u003e\u003ch3\u003eKey Benefits for Your Build\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePerfect for early GM LS truck engines with 24x reluctor wheels\u003c\/li\u003e\n\u003cli\u003eIncludes 3.5-inch handheld touchscreen for real-time monitoring\u003c\/li\u003e\n\u003cli\u003eAdvanced self-learning fuel strategies for improved drivability\u003c\/li\u003e\n\u003cli\u003eComplete wiring harness for a straightforward installation\u003c\/li\u003e\n\u003cli\u003eHigh-speed data logging to help you refine your tune\u003c\/li\u003e\n\u003cli\u003eCompact and reliable ECU design\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are performing an LS swap into a classic truck or simply looking to improve the performance of your existing LS-powered vehicle, the Terminator X is up to the task. The system's intuitive software makes it accessible for beginners, while offering enough depth for experienced tuners to dial in every detail. You will notice improved throttle response, better fuel efficiency, and increased power across the entire RPM range. Don't let factory limitations hold your truck back any longer. Upgrade to the Holley EFI Terminator X and experience the difference in performance and reliability. For premium automotive parts, trust the selection at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X MPFI Kit Early LS Truck 24x w\/Touchscreen \\u2014 Fits GM LS-Series Engines\",\"description\":\"Upgrade your early GM LS truck engine with the Holley EFI Terminator X. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X MPFI Kit Early LS Truck 24x w\/Touchscreen \\u2014 Fits GM LS-S?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880350658644,"sku":"GVMR_550-904","price":1599.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-904.jpg?v=1714509861"},{"product_id":"terminator-x-mpfi-gm-ls1-ls6","title":"Holley EFI Terminator X MPFI Standalone ECU Kit — Fits GM LS1\/LS6 24x Engines","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/jKSDyIwYDD0\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUnlock Maximum Power with Holley EFI Terminator X\u003c\/h2\u003e\u003cp\u003eTake full control of your GM LS-series engine with the Holley EFI Terminator X MPFI Standalone ECU system. Designed specifically for LS1 and LS6 engines equipped with a 24x reluctor wheel, this kit replaces your factory computer to provide advanced tuning capabilities, improved throttle response, and reliable performance in any driving condition.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play Integration:\u003c\/strong\u003e Includes a comprehensive wiring harness for a straightforward installation on GM LS applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Tuning:\u003c\/strong\u003e Features a high-speed processor that allows for real-time adjustments to fuel, spark, and sensor inputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24x Reluctor Compatibility:\u003c\/strong\u003e Specifically engineered to work seamlessly with factory 24x crank triggers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Logging:\u003c\/strong\u003e Built-in data logging capabilities help you monitor engine health and optimize your tune for the track or street.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Terminator X system is the ultimate solution for enthusiasts looking to modernize their LS build. Whether you are running a stock engine or a modified setup, this ECU provides the flexibility to grow with your project. Its intuitive software interface makes it easy to dial in your air-fuel ratios and ignition timing for maximum horsepower and torque. Experience the precision engineering of Holley EFI components today at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X MPFI Standalone ECU Kit \\u2014 Fits GM LS1\/LS6 24x Engines\",\"description\":\"Upgrade your GM LS1 or LS6 with the Holley EFI Terminator X MPFI system. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X MPFI Standalone ECU Kit \\u2014 Fits GM LS1\/LS6 24x Engines?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880350691412,"sku":"GVMR_550-903T","price":1449.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-903T.jpg?v=1714509870"},{"product_id":"engine-management-system-terminator-x","title":"Holley EFI Terminator X MPFI Kit GM LS 24x Reluctor — With 3.5in Touchscreen","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/tkD3e9BOQ0A\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eMaster Your GM LS Engine with the Holley EFI Terminator X MPFI System\u003c\/h2\u003e\u003cp\u003eTake complete control of your GM LS engine's performance with the Holley EFI Terminator X MPFI Kit. This versatile engine management system is engineered for LS engines utilizing a 24x reluctor wheel, offering a powerful combination of advanced control and user-friendly operation. Featuring an integrated 3.5-inch full-color touchscreen, this kit simplifies tuning and monitoring, making it an excellent choice for both experienced tuners and those new to EFI.\u003c\/p\u003e\u003ch3\u003eIntuitive Control and Comprehensive Features\u003c\/h3\u003e\u003cp\u003eThe Terminator X system provides a complete solution for modernizing your LS engine's fuel injection. At its heart is a sophisticated Engine Control Module (ECM) that delivers precise command over fuel delivery, ignition timing, and various engine parameters. The standout 3.5-inch touchscreen display allows for effortless setup, real-time data logging, and on-the-fly adjustments, eliminating the need for a laptop for many common tasks. This intuitive interface empowers you to fine-tune your engine for maximum power and efficiency.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile GM LS Compatibility:\u003c\/strong\u003e Designed for 24x reluctor wheel applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated 3.5-inch Touchscreen:\u003c\/strong\u003e User-friendly interface for setup, tuning, and monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Quality Wiring Harness:\u003c\/strong\u003e Ensures a straightforward and reliable installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Learning Fuel Strategy:\u003c\/strong\u003e Continuously optimizes fuel and spark for peak performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Tuning Capabilities:\u003c\/strong\u003e Boost control, nitrous control, and built-in data logging.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUnleash Your LS Engine's Full Potential\u003c\/h3\u003e\u003cp\u003eThe Holley EFI Terminator X MPFI Kit is the ultimate upgrade for any GM LS engine owner looking for superior performance and ease of use. Experience dramatic improvements in throttle response, horsepower, and torque, along with smoother idle and enhanced drivability. Its robust construction and intelligent design ensure long-term reliability and consistent performance, making it a valuable investment for your high-performance vehicle. Discover the difference with GGCRACING's selection of premium EFI systems.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X MPFI Kit GM LS 24x Reluctor \\u2014 With 3.5in Touchscreen\",\"description\":\"Take command of your GM LS engine with the Holley Terminator X MPFI Kit. Features 3.5in touchscreen for intuitive tuning and optimal power. Order today!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-903\",\"url\":\"https:\/\/ggcracing.com\/products\/engine-management-system-terminator-x\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1348.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/engine-management-system-terminator-x\",\"sku\":\"GVMR_550-903\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X MPFI Kit GM LS 24x Reluctor \\u2014 With 3.5in Touchscreen\",\"item\":\"https:\/\/ggcracing.com\/products\/engine-management-system-terminator-x\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X MPFI Kit GM LS 24x Reluctor \\u2014 With 3.5in Touchscreen fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X MPFI Kit GM LS 24x Reluctor \\u2014 With 3.5in Touchscreen?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880352198740,"sku":"GVMR_550-903","price":1599.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-903.jpg?v=1714509880"},{"product_id":"terminator-x-max-mpfi-sys-ford-w-trans-contr","title":"Holley EFI Terminator X Max MPFI System — Fits Ford Big\/Small Block w\/ Trans Control","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9l5g4F54SRM\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eMaster Your Ford Build with Terminator X Max\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X Max is the ultimate engine management solution for Ford enthusiasts looking to integrate transmission control into their fuel injection setup. Designed for both Big Block and Small Block Ford engines, this system offers complete control over your engine's vitals while managing electronic transmission functions, making it perfect for modern transmission swaps.\u003c\/p\u003e\u003ch3\u003eSystem Highlights\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Transmission Control:\u003c\/strong\u003e Seamlessly manages electronic transmissions, ensuring perfect shift points and pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive-By-Wire Support:\u003c\/strong\u003e Fully compatible with modern DBW throttle bodies for precise throttle modulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Harness:\u003c\/strong\u003e Includes a high-quality wiring harness designed for a clean, professional installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning Capabilities:\u003c\/strong\u003e Uses advanced algorithms to adjust fuel maps automatically, saving you time on the dyno.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are building a high-horsepower street machine or a dedicated drag car, the Terminator X Max provides the reliability and performance you demand. By combining engine management and transmission control into one compact unit, you reduce wiring complexity and improve overall system efficiency. This kit is the gold standard for Ford engine swaps requiring modern electronic features. Upgrade your vehicle's performance with premium parts from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X Max MPFI System \\u2014 Fits Ford Big\/Small Block w\/ Trans Control\",\"description\":\"Control your Ford engine and transmission with the Holley EFI Terminator X Max. 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See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880352297044,"sku":"GVMR_550-943","price":1798.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-943.jpg?v=1714509889"},{"product_id":"efi-ecu-bracket-79-04-mustang","title":"Holley EFI ECU Mounting Bracket — Fits 1979-2004 Ford Mustang","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/M2RwQoyiFHE\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eProfessional ECU Mounting for Fox Body and SN95 Mustangs\u003c\/h2\u003e\u003cp\u003eEnsure your Holley EFI ECU is securely mounted and protected with this custom-fit bracket designed specifically for 1979-2004 Ford Mustangs. This bolt-on solution is engineered to fit perfectly under the seat, keeping your electronics out of sight while maintaining easy access for tuning and maintenance.\u003c\/p\u003e\u003ch3\u003eWhy Choose This Bracket?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle Specific Fitment:\u003c\/strong\u003e Precision-engineered for the 1979-2004 Mustang chassis, ensuring a perfect fit without modifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Manufactured from high-strength steel to withstand vibrations and harsh racing environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtective Finish:\u003c\/strong\u003e Finished in a sleek black powder coat to resist corrosion and provide a factory-clean look.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Bolt-on design allows for a quick and simple installation process, saving you time in the garage.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eProperly mounting your ECU is critical for long-term reliability. By using a dedicated bracket, you prevent loose wiring and potential damage to your sensitive electronic components. This bracket is an essential accessory for any Mustang owner performing an EFI conversion or upgrading their engine management system. Trust in the quality and durability of Holley EFI components for your next build at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI ECU Mounting Bracket \\u2014 Fits 1979-2004 Ford Mustang\",\"description\":\"Secure your ECU with the Holley EFI Mounting Bracket for 1979-2004 Ford Mustangs. 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Order your performance parts at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"554-157\",\"url\":\"https:\/\/ggcracing.com\/products\/efi-ecu-bracket-79-04-mustang\",\"offers\":{\"@type\":\"Offer\",\"price\":\"101.65\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/efi-ecu-bracket-79-04-mustang\",\"sku\":\"GVMR_554-157\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI ECU Mounting Bracket \\u2014 Fits 1979-2004 Ford Mustang\",\"item\":\"https:\/\/ggcracing.com\/products\/efi-ecu-bracket-79-04-mustang\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI ECU Mounting Bracket \\u2014 Fits 1979-2004 Ford Mustang fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. 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See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880354230356,"sku":"GVMR_554-157","price":105.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY554-157.jpg?v=1714509946"},{"product_id":"term-x-max-mpfi-kit-ls-early-truck-w-trans-cont","title":"Holley EFI Terminator X Max MPFI Kit — LS Early Truck w\/ Transmission Control (24x Reluctor)","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9l5g4F54SRM\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUnleash Peak Performance with the Holley EFI Terminator X Max MPFI Kit for LS Early Trucks\u003c\/h2\u003e\u003cp\u003eFor enthusiasts performing an LS swap into an early model truck, or upgrading an existing LS engine, the \u003cb\u003eHolley EFI Terminator X Max Multi-Port Fuel Injection (MPFI) Kit\u003c\/b\u003e (MPN: 550-917) is the ultimate solution. This advanced engine control module (ECM) provides comprehensive engine and transmission management in a single, powerful package. Specifically designed for GM LS-Series engines utilizing a 24x reluctor wheel, this kit ensures seamless integration and unparalleled control for your early truck application.\u003c\/p\u003e\u003ch3\u003eIntegrated Engine \u0026amp; Transmission Control:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eComplete LS Swap Solution:\u003c\/b\u003e Provides full control for 24x reluctor GM LS-Series engines in early truck chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated Transmission Control:\u003c\/b\u003e Manages automatic transmissions, ensuring optimal shift points and performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e3.5-inch Touchscreen:\u003c\/b\u003e Intuitive interface for real-time monitoring, tuning, and diagnostics without a laptop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComprehensive Wiring Harness:\u003c\/b\u003e High-quality, clearly labeled harness simplifies installation and ensures reliable connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSelf-Learning Capability:\u003c\/b\u003e Adapts to your engine's specific needs, optimizing fuel and spark for peak efficiency and power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable \u0026amp; Reliable:\u003c\/b\u003e Engineered for the demanding environment of performance automotive applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSystem Type:\u003c\/b\u003e Terminator X Max Multi-Port Fuel Injection (MPFI)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEngine Compatibility:\u003c\/b\u003e GM LS-Series (Early Truck Applications)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReluctor Wheel Compatibility:\u003c\/b\u003e 24x\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDisplay:\u003c\/b\u003e 3.5-inch Handheld Touchscreen\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIncluded Components:\u003c\/b\u003e ECU, Wiring Harness, Sensors, Touchscreen Display\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTransmission Control:\u003c\/b\u003e Integrated (for compatible automatic transmissions)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e Holley EFI 550-917\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Holley EFI Terminator X Max MPFI Kit for LS Early Trucks is more than just an ECU; it's a complete performance ecosystem. Experience the benefits of modern engine management, from improved throttle response and horsepower to enhanced fuel economy and drivability. Elevate your LS-powered early truck to its full potential with this expert-level kit, available at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X Max MPFI Kit \\u2014 LS Early Truck w\/ Transmission Control (24x Reluctor)\",\"description\":\"Unlock full potential for your LS early truck with the Holley EFI Terminator X Max MPFI Kit. Complete engine \u0026 transmission control for 24x reluctor LS engines.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-917\",\"url\":\"https:\/\/ggcracing.com\/products\/term-x-max-mpfi-kit-ls-early-truck-w-trans-cont\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1899.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/term-x-max-mpfi-kit-ls-early-truck-w-trans-cont\",\"sku\":\"GVMR_550-917\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X Max MPFI Kit \\u2014 LS Early Truck w\/ Transmission Control (24x Reluctor)\",\"item\":\"https:\/\/ggcracing.com\/products\/term-x-max-mpfi-kit-ls-early-truck-w-trans-cont\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X Max MPFI Kit \\u2014 LS Early Truck w\/ Transmission Control (2 fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X Max MPFI Kit \\u2014 LS Early Truck w\/ Transmission Control (2?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880355672148,"sku":"GVMR_550-917","price":1798.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-917.jpg?v=1714510148"},{"product_id":"terminator-x-max-mpfi-system-gm-ls-24x-1x","title":"Holley EFI Terminator X Max MPFI System — Fits GM LS 24X\/1X Drive By Wire","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eUnleash the Full Potential of Your GM LS Engine with Terminator X Max\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X Max MPFI System is the ultimate engine management solution for GM LS 24X\/1X reluctor wheel engines, offering unparalleled control and performance. This comprehensive kit provides everything you need to precisely manage your LS swap, including drive-by-wire (DBW) throttle control and full transmission control. Experience seamless integration, advanced tuning capabilities, and a significant boost in drivability and power.\u003c\/p\u003e\u003ch3\u003eAdvanced Features for Complete LS Engine Control\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSystem:\u003c\/b\u003e Terminator X Max MPFI System\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEngine Compatibility:\u003c\/b\u003e Specifically designed for GM LS-Series engines with 24x reluctor wheels and 1x cam sensors\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThrottle Control:\u003c\/b\u003e Integrated Drive By Wire (DBW) support for modern throttle bodies\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTransmission Control:\u003c\/b\u003e Full electronic transmission control for compatible automatic transmissions\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDisplay:\u003c\/b\u003e Includes a vibrant 3.5-inch touchscreen for real-time data and tuning\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWiring:\u003c\/b\u003e Comprehensive wiring harness for a clean and reliable installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSelf-Tuning:\u003c\/b\u003e Advanced self-tuning fuel strategies for optimal performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eData Logging:\u003c\/b\u003e Built-in data logging capabilities to fine-tune your setup\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis powerful Engine Control Module (ECM) kit simplifies the complexities of an LS swap, providing a user-friendly interface and robust hardware. The included 3.5-inch touchscreen allows for easy monitoring of engine parameters and on-the-fly adjustments, while the sophisticated self-tuning algorithms ensure your engine always runs at its best, whether on the street or the track.\u003c\/p\u003e\u003ch3\u003eWhy the Terminator X Max is Essential for Your LS Build\u003c\/h3\u003e\u003cp\u003eFor serious builders and tuners, the Holley EFI Terminator X Max is more than just an ECU; it's a complete ecosystem for your LS engine. Its ability to manage both the engine and transmission, combined with DBW support, makes it the ideal choice for modern LS swaps requiring comprehensive control. Achieve smoother shifts, more precise throttle input, and unlock hidden horsepower with this cutting-edge system. Trust GGCRACING for your Holley EFI needs and take your LS project to the next level.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X Max MPFI System \\u2014 Fits GM LS 24X\/1X Drive By Wire\",\"description\":\"Unlock peak performance for your GM LS 24X\/1X engine with the Holley EFI Terminator X Max MPFI System. Features DBW \u0026 transmission control. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-927\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-system-gm-ls-24x-1x\",\"offers\":{\"@type\":\"Offer\",\"price\":\"2099.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-system-gm-ls-24x-1x\",\"sku\":\"GVMR_550-927\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X Max MPFI System \\u2014 Fits GM LS 24X\/1X Drive By Wire\",\"item\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-system-gm-ls-24x-1x\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X Max MPFI System \\u2014 Fits GM LS 24X\/1X Drive By Wire fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X Max MPFI System \\u2014 Fits GM LS 24X\/1X Drive By Wire?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880355934292,"sku":"GVMR_550-927","price":1978.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-927.jpg?v=1714510157"},{"product_id":"termintor-x-max-mpfi-w-trans-dbw-gm-ls1-ls6","title":"Holley EFI Terminator X Max MPFI System — Fits GM LS1\/LS6 24x DBW\/Trans","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/o_iD31EWv9o\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUnlock Maximum Performance with Holley EFI Terminator X Max\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X Max MPFI system is the ultimate engine management solution for your GM LS1\/LS6 build. Designed for enthusiasts who demand precision and control, this kit integrates seamless Drive-By-Wire (DBW) capabilities with advanced transmission control for 4L60E and 4L80E units. Whether you are hitting the track or the street, this system ensures your engine operates at its peak efficiency.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Tuning:\u003c\/strong\u003e Real-time fuel and ignition mapping for 24x reluctor wheel LS engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Control:\u003c\/strong\u003e Built-in transmission management to optimize shift points and pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDBW Support:\u003c\/strong\u003e Full Drive-By-Wire throttle body integration for modern throttle response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play:\u003c\/strong\u003e Includes comprehensive wiring harnesses to simplify your installation process.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Logging:\u003c\/strong\u003e Monitor critical engine parameters with ease using the included software suite.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis kit provides the scalability required for naturally aspirated or power-adder setups, giving you the flexibility to grow your build. The Terminator X Max platform is renowned for its user-friendly interface, making professional-grade tuning accessible to every builder. Experience the difference in throttle response, fuel economy, and overall power delivery. Elevate your vehicle's performance standards with premium components from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X Max MPFI System \\u2014 Fits GM LS1\/LS6 24x DBW\/Trans\",\"description\":\"Upgrade your GM LS1\/LS6 engine with the Holley EFI Terminator X Max. Features DBW and transmission control. Shop high-performance tuning at GGCRACING today.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-926T\",\"url\":\"https:\/\/ggcracing.com\/products\/termintor-x-max-mpfi-w-trans-dbw-gm-ls1-ls6\",\"offers\":{\"@type\":\"Offer\",\"price\":\"2049.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/termintor-x-max-mpfi-w-trans-dbw-gm-ls1-ls6\",\"sku\":\"GVMR_550-926T\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X Max MPFI System \\u2014 Fits GM LS1\/LS6 24x DBW\/Trans\",\"item\":\"https:\/\/ggcracing.com\/products\/termintor-x-max-mpfi-w-trans-dbw-gm-ls1-ls6\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X Max MPFI System \\u2014 Fits GM LS1\/LS6 24x DBW\/Trans fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X Max MPFI System \\u2014 Fits GM LS1\/LS6 24x DBW\/Trans?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880356098132,"sku":"GVMR_550-926T","price":1826.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-926T.jpg?v=1714510166"},{"product_id":"terminator-x-mpfi-kit-gm-ls1-w-ev6-inj-harness-1","title":"Holley EFI Terminator X MPFI Kit — Fits GM LS1 24x w\/EV6 Injectors","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9l5g4F54SRM\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003ePrecision Tuning for Your GM LS1 Engine\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X MPFI Kit is specifically engineered to bring modern fuel injection control to your GM LS1 engine. Featuring a 24x reluctor wheel compatibility and dedicated EV6 injector harnesses, this kit is the perfect solution for those looking to replace outdated factory ECUs or carburetors with reliable, high-performance EFI technology. The included 3.5-inch touchscreen provides an intuitive interface for real-time monitoring and quick adjustments.\u003c\/p\u003e\u003ch3\u003eWhy Choose Terminator X?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Friendly Interface:\u003c\/strong\u003e The 3.5-inch handheld touchscreen makes tuning and monitoring simple.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Performance:\u003c\/strong\u003e Pre-loaded base maps get your engine running smoothly in minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEV6 Compatibility:\u003c\/strong\u003e Designed specifically for EV6 injector connectors for a seamless fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Learning Technology:\u003c\/strong\u003e Automatically adjusts fuel maps to ensure your engine runs optimally under all conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Small, powerful ECU footprint for flexible mounting options.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eTransform your driving experience with the Holley EFI Terminator X. This system eliminates the guesswork of engine tuning, offering a robust platform that handles everything from daily driving to aggressive track use. With its comprehensive wiring harness and high-quality sensors, you can trust in the durability and performance of your setup. Get the best in engine management technology for your next project at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X MPFI Kit \\u2014 Fits GM LS1 24x w\/EV6 Injectors\",\"description\":\"Take control of your GM LS1 with the Holley EFI Terminator X MPFI Kit. Includes 3.5-inch touchscreen. Order your performance upgrade at GGCRACING now.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-909\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-gm-ls1-w-ev6-inj-harness-1\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1499.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-gm-ls1-w-ev6-inj-harness-1\",\"sku\":\"GVMR_550-909\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X MPFI Kit \\u2014 Fits GM LS1 24x w\/EV6 Injectors\",\"item\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-gm-ls1-w-ev6-inj-harness-1\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X MPFI Kit \\u2014 Fits GM LS1 24x w\/EV6 Injectors fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X MPFI Kit \\u2014 Fits GM LS1 24x w\/EV6 Injectors?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880356163668,"sku":"GVMR_550-909","price":1599.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-909.jpg?v=1714510175"},{"product_id":"terminator-x-max-mpfi-w-trans-control-ls1-w-ev6","title":"Holley EFI Terminator X Max MPFI Kit — Fits GM LS1 w\/EV6 \u0026 Trans Control","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9l5g4F54SRM\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eAdvanced Engine and Transmission Control\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X Max MPFI Kit is the ultimate all-in-one management system for your GM LS1 build. By combining engine management with sophisticated transmission control, this kit allows you to synchronize your powertrain for maximum efficiency and performance. Designed for 24x reluctor wheel LS1 engines using EV6 injectors, it offers unparalleled control over your vehicle's performance characteristics.\u003c\/p\u003e\u003ch3\u003eSuperior Features for Your Build\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Control:\u003c\/strong\u003e Manage both your engine and transmission from a single, powerful ECU.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEV6 Harness:\u003c\/strong\u003e Tailored for EV6 injector setups to ensure a perfect electrical connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive-By-Wire Ready:\u003c\/strong\u003e Supports modern DBW throttle bodies for precise throttle control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomizable Tuning:\u003c\/strong\u003e Extensive software options allow you to dial in your engine for any application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliability:\u003c\/strong\u003e Built to withstand the rigors of high-performance driving environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are building a street cruiser or a dedicated race car, the Terminator X Max provides the tools you need to succeed. The system's ability to manage transmission shift points and line pressure significantly improves driving dynamics, making it an essential upgrade for any serious enthusiast. Experience the power of professional-grade tuning with the reliability you expect from Holley. Find all your high-performance parts and expert advice at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X Max MPFI Kit \\u2014 Fits GM LS1 w\/EV6 \u0026 Trans Control\",\"description\":\"Upgrade to the Holley EFI Terminator X Max for your LS1. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X Max MPFI Kit \\u2014 Fits GM LS1 w\/EV6 \u0026 Trans Control?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880356196436,"sku":"GVMR_550-919T","price":1753.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-919T.jpg?v=1714510184"},{"product_id":"terminator-x-max-mpfi-kit-w-trans-ls1-w-ev6","title":"Holley EFI Terminator X Max MPFI Kit GM LS1 EV6 with DBW, Trans Control \u0026 3.5\" Touchscreen","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/brnBfue5CBs\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUltimate LS1 EV6 Control: Holley Terminator X Max MPFI Kit with Touchscreen\u003c\/h2\u003e\u003cp\u003eAchieve unparalleled control and performance for your GM LS1 engine equipped with EV6 injectors using the Holley EFI Terminator X Max MPFI Kit (MPN: 550-919). This all-inclusive engine management system combines the power of integrated Drive-By-Wire (DBW) and transmission control with the convenience of a 3.5-inch touchscreen, providing a complete solution for modern LS swaps and high-performance builds. It's the pinnacle of user-friendly, high-capability EFI.\u003c\/p\u003e\u003ch3\u003eComprehensive Engine \u0026amp; Transmission Management\u003c\/h3\u003e\u003cp\u003eThe Terminator X Max is engineered to simplify complex powertrain management. With its built-in DBW and transmission control, you gain precise command over your electronic throttle and automatic gearbox, all from a single, powerful ECU. The included touchscreen further enhances this by offering immediate access to tuning, diagnostics, and real-time data, eliminating the need for a laptop during most adjustments.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eEngine Control Module (ECM):\u003c\/b\u003e Robustly manages fuel, spark, and other critical engine parameters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated 3.5-inch Touchscreen:\u003c\/b\u003e For effortless setup, tuning, and monitoring without external devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFull Wiring Harness:\u003c\/b\u003e High-quality, clearly labeled harness for a streamlined and professional installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDrive-By-Wire (DBW) Support:\u003c\/b\u003e Enables modern electronic throttle control for superior drivability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTransmission Control:\u003c\/b\u003e Seamlessly manages compatible automatic transmissions for optimized shifting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e24x Reluctor Wheel Compatibility:\u003c\/b\u003e Ensures accurate engine position sensing for reliable operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGM LS1 with EV6 Injector Harness:\u003c\/b\u003e Tailored for LS1 engines using EV6 style fuel injectors.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eExperience the Future of LS Performance\u003c\/h3\u003e\u003cp\u003eThis Holley Terminator X Max kit is the definitive choice for those seeking a fully integrated, high-performance engine management system for their LS1 EV6 project. From its intuitive touchscreen interface to its comprehensive control capabilities, every aspect is designed to deliver maximum performance with minimal hassle. Enjoy smoother power delivery, improved efficiency, and the confidence that comes from a state-of-the-art EFI system. Elevate your build with the best from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X Max MPFI Kit GM LS1 EV6 with DBW, Trans Control \u0026 3.5\\\" Touchscreen\",\"description\":\"Experience complete control for your GM LS1 EV6 with the Holley Terminator X Max MPFI Kit. Includes DBW, trans control, and 3.5\\\" touchscreen. Buy now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-919\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-kit-w-trans-ls1-w-ev6\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1899.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-kit-w-trans-ls1-w-ev6\",\"sku\":\"GVMR_550-919\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X Max MPFI Kit GM LS1 EV6 with DBW, Trans Control \u0026 3.5\\\" Touchscreen\",\"item\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-kit-w-trans-ls1-w-ev6\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X Max MPFI Kit GM LS1 EV6 with DBW, Trans Control \u0026 3.5\\\" T fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X Max MPFI Kit GM LS1 EV6 with DBW, Trans Control \u0026 3.5\\\" T?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880356229204,"sku":"GVMR_550-919","price":1698.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-919.jpg?v=1714510193"},{"product_id":"terminator-x-max-mpfi-kit-w-trans-control","title":"Holley EFI Terminator X Max MPFI Kit — Fits GM LS 58x w\/Trans Control","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9l5g4F54SRM\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUnleash Your 58x LS Engine's Potential\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X Max MPFI Kit is specifically designed for 58x reluctor wheel GM LS engines, providing a comprehensive solution for both engine and transmission management. This kit is perfect for builders looking to modernize their drivetrain with a system that offers both power and reliability. With the included 3.5-inch touchscreen, you have full control over your engine's vitals and tuning parameters at your fingertips.\u003c\/p\u003e\u003ch3\u003eWhy Choose the Terminator X Max?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e58x Compatibility:\u003c\/strong\u003e Engineered specifically for modern 58x reluctor wheel LS platforms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Transmission Control:\u003c\/strong\u003e Take command of your automatic transmission for improved shift quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandheld Touchscreen:\u003c\/strong\u003e Easy-to-use interface for real-time monitoring and adjustments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Harness:\u003c\/strong\u003e High-quality wiring ensures a clean and reliable installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScalable Performance:\u003c\/strong\u003e Suitable for everything from stock engines to high-horsepower builds.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Terminator X Max is designed to simplify the complex task of tuning, allowing you to spend more time on the road or track. Its robust software allows for precise fuel and spark control, ensuring your engine runs efficiently under any load. By integrating transmission control, you can fine-tune your vehicle's behavior to match your driving style perfectly. Upgrade your engine management system today and experience the precision of Holley EFI. Get the best performance components for your build at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X Max MPFI Kit \\u2014 Fits GM LS 58x w\/Trans Control\",\"description\":\"Optimize your 58x GM LS engine with the Holley EFI Terminator X Max. Includes transmission control and touchscreen. Shop now at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-918\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-kit-w-trans-control\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1899.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-kit-w-trans-control\",\"sku\":\"GVMR_550-918\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X Max MPFI Kit \\u2014 Fits GM LS 58x w\/Trans Control\",\"item\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-mpfi-kit-w-trans-control\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X Max MPFI Kit \\u2014 Fits GM LS 58x w\/Trans Control fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X Max MPFI Kit \\u2014 Fits GM LS 58x w\/Trans Control?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880356327508,"sku":"GVMR_550-918","price":1698.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-918.jpg?v=1714510203"},{"product_id":"terminator-x-mpfi-system-universal","title":"Holley EFI Terminator X MPFI System — Universal Fitment","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eExperience Unrivaled Engine Control with the Holley EFI Terminator X MPFI System\u003c\/h2\u003e\u003cp\u003eRevolutionize your engine's performance with the \u003cb\u003eHolley EFI Terminator X MPFI System\u003c\/b\u003e, a versatile and powerful engine management solution designed for universal application. This kit brings advanced multi-port fuel injection control to a wide range of engines, making it an ideal choice for custom builds, engine swaps, or upgrading older carbureted systems. With its intuitive 3.5-inch touchscreen and self-learning capabilities, achieving optimal performance has never been easier.\u003c\/p\u003e\u003ch3\u003eUniversal Compatibility \u0026amp; Smart Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUniversal Fitment:\u003c\/b\u003e Adaptable to a vast array of engines, providing flexible EFI control for almost any project.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e3.5-inch Touchscreen Display:\u003c\/b\u003e Offers direct access to tuning, real-time data, and diagnostics without the need for a laptop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSelf-Learning Fuel Strategy:\u003c\/b\u003e Automatically adjusts fuel maps to maintain ideal air\/fuel ratios, simplifying the tuning process for any setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComprehensive Wiring Harness:\u003c\/b\u003e High-quality, clearly labeled harness ensures a straightforward and reliable installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAdvanced Tuning Capabilities:\u003c\/b\u003e Allows for precise control over fuel, spark, and other engine parameters for maximum power and efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Terminator X MPFI System is engineered to simplify complex engine management. Its self-learning function means less time on the dyno and more time enjoying your vehicle. Whether you're building a classic hot rod, a custom off-road rig, or a modern performance machine, this system provides the foundation for a reliable, high-performing engine. Its universal design makes it a go-to choice for fabricators and enthusiasts alike.\u003c\/p\u003e\u003ch3\u003eSystem Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFitment:\u003c\/b\u003e Universal\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eControl Interface:\u003c\/b\u003e 3.5-inch Touchscreen\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFuel Type:\u003c\/b\u003e Multi-Port Fuel Injection (MPFI)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e 550-936\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUnlock the true potential of your engine with the Holley EFI Terminator X MPFI System. Discover universal performance and precision at GGCRACING.COM.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X MPFI System \\u2014 Universal Fitment\",\"description\":\"Experience powerful engine management with the Holley EFI Terminator X MPFI System. Universal fitment, 3.5\\\" touchscreen, self-learning. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-936\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-system-universal\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1348.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-system-universal\",\"sku\":\"GVMR_550-936\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X MPFI System \\u2014 Universal Fitment\",\"item\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-system-universal\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X MPFI System \\u2014 Universal Fitment fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X MPFI System \\u2014 Universal Fitment?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. 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At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/-2RG9RsMJ-8\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eMaster Your Transmission with Terminator X Max\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X Max Universal MPFI Kit is the ultimate choice for enthusiasts looking to gain precise control over their GM 4L80E transmission. This system is designed to provide seamless integration and superior management of your transmission's shift points, line pressure, and torque converter lock-up. Whether you are building a high-performance street machine or a dedicated drag car, this kit ensures your transmission performs exactly how you need it to.\u003c\/p\u003e\u003ch3\u003eKey Advantages of the Universal Kit\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4L80E Optimization:\u003c\/strong\u003e Specifically calibrated for the robust 4L80E transmission.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Application:\u003c\/strong\u003e Designed to fit a wide range of custom builds and engine swaps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Shift Control:\u003c\/strong\u003e Fine-tune shift points and pressure for a smoother or more aggressive feel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Performance:\u003c\/strong\u003e Engineered to handle the demands of high-torque applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Integration:\u003c\/strong\u003e Works seamlessly with the Terminator X Max ecosystem for a unified powertrain solution.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eManaging your transmission is just as important as managing your engine. With the Terminator X Max, you gain the ability to optimize your vehicle's drivetrain for better acceleration, improved fuel efficiency, and longer component life. The universal nature of this kit makes it a versatile addition to any project, allowing you to customize your setup to meet your specific goals. Trust in the quality and innovation of Holley EFI to keep your vehicle performing at its best. Find all your high-performance drivetrain solutions at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X Max Universal MPFI Kit \\u2014 Fits GM 4L80E\",\"description\":\"Take control of your GM 4L80E transmission with the Holley EFI Terminator X Max Universal Kit. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X Max Universal MPFI Kit \\u2014 Fits GM 4L80E?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. 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At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9l5g4F54SRM\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eTotal Engine Management for GM LS1\/LS6\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X Max MPFI Kit is the ultimate solution for enthusiasts looking to master their GM LS1 or LS6 engine. This comprehensive kit provides full control over your fuel injection, ignition timing, and transmission, all through an intuitive 3.5-inch touchscreen interface. Designed for 24x reluctor wheel applications with Drive-By-Wire (DBW) capability, this system brings modern performance to your classic build.\u003c\/p\u003e\u003ch3\u003eComplete System Highlights\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTerminator X Max ECU with integrated transmission control\u003c\/li\u003e\n\u003cli\u003e3.5-inch full-color handheld touchscreen for real-time tuning\u003c\/li\u003e\n\u003cli\u003eSupports Drive-By-Wire (DBW) throttle bodies\u003c\/li\u003e\n\u003cli\u003eOptimized for 24x crank reluctor wheel LS engines\u003c\/li\u003e\n\u003cli\u003eComplete plug-and-play wiring harness included\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWith the Terminator X Max, you gain self-learning fuel strategies that make tuning easier than ever. Whether you are building a daily driver or a high-performance street machine, this system adapts to your specific engine configuration for maximum power and efficiency. The included transmission control ensures your automatic gearbox shifts perfectly in sync with your engine's power curve. Experience the next level of engine management technology with GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X Max MPFI Kit \\u2014 Fits GM LS1\/LS6 Drive-By-Wire\",\"description\":\"Take control of your LS1\/LS6 with the Holley EFI Terminator X Max MPFI Kit. 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At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTake Full Control with the Holley EFI 3.5\" Touch Screen\u003c\/h2\u003e\u003cp\u003eThe Holley EFI 3.5\" LCD Touch Screen Controller (553-108) is the ultimate interface for your Holley HP or Dominator EFI system. This compact, high-resolution display puts total control over your engine's vitals and tuning parameters right at your fingertips, making it an essential tool for any serious performance driver.\u003c\/p\u003e\u003ch3\u003eFeatures and Capabilities\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntuitive Touch Interface:\u003c\/strong\u003e Easily navigate through menus to monitor engine data, adjust tunes, or clear diagnostic codes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Works seamlessly with both Holley HP and Dominator EFI systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact 3.5\" Display:\u003c\/strong\u003e Perfectly sized for mounting in tight spaces without obstructing your view.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal-Time Monitoring:\u003c\/strong\u003e Keep an eye on RPM, AFR, coolant temperature, oil pressure, and more in real-time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are making quick adjustments at the track or monitoring your engine during a cruise, this touch screen controller provides the data you need when you need it. The bright, clear display is easy to read even in direct sunlight, and the user-friendly software ensures that you spend less time navigating menus and more time driving. With its robust build quality, it is designed to handle the vibrations and heat of a high-performance vehicle. Elevate your driving experience and gain better control over your engine management with this premium controller from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI 3.5in LCD Touch Screen Controller 553-108 \\u2014 Fits HP\/Dominator\",\"description\":\"Take control of your engine with the Holley EFI 3.5in LCD Touch Screen. Compatible with HP and Dominator systems. Buy now at GGCRACING!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"553-108\",\"url\":\"https:\/\/ggcracing.com\/products\/holley-efi-3-5in-lcd-touch-screen-controller\",\"offers\":{\"@type\":\"Offer\",\"price\":\"367.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/holley-efi-3-5in-lcd-touch-screen-controller\",\"sku\":\"GVMR_553-108\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI 3.5in LCD Touch Screen Controller 553-108 \\u2014 Fits HP\/Dominator\",\"item\":\"https:\/\/ggcracing.com\/products\/holley-efi-3-5in-lcd-touch-screen-controller\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI 3.5in LCD Touch Screen Controller 553-108 \\u2014 Fits HP\/Dominator fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI 3.5in LCD Touch Screen Controller 553-108 \\u2014 Fits HP\/Dominator?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880369860692,"sku":"GVMR_553-108","price":355.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY553-108.jpg?v=1714510891"},{"product_id":"efi-terminator-x-kit-ford-2v-mod-motor","title":"Holley EFI Terminator-X Engine Management Kit — Fits Ford 2V Mod Motor","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/jKSDyIwYDD0\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eTotal Engine Control for Ford Modular Engines\u003c\/h2\u003e\u003cp\u003eTake complete command of your Ford 2-Valve Modular engine with the Holley EFI Terminator-X engine management kit. This comprehensive package provides the tools necessary to unlock the hidden potential of your engine, offering precise control over ignition, fuel, and auxiliary functions. Designed specifically for the Ford 2V platform, this system replaces your factory ECU with a high-speed processor capable of handling complex tuning requirements with ease.\u003c\/p\u003e\u003ch3\u003eKit Components and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEngine Control Module: Terminator X high-speed ECU\u003c\/li\u003e\n\u003cli\u003eInterface: 3.5-inch full-color touchscreen for real-time monitoring\u003c\/li\u003e\n\u003cli\u003eWiring: Application-specific plug-and-play harness\u003c\/li\u003e\n\u003cli\u003eCompatibility: Ford 2-Valve Modular engines\u003c\/li\u003e\n\u003cli\u003eTuning: Fully programmable for custom performance builds\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe included 3.5-inch touchscreen allows you to monitor engine vitals, adjust tuning parameters on the fly, and view data logs without needing a laptop. Whether you are running a stock engine or a heavily modified setup with forced induction, the Terminator-X provides the flexibility to dial in your performance perfectly. The plug-and-play wiring harness simplifies the installation process, ensuring a reliable connection for all sensors and actuators. Upgrade your Ford Modular engine with the industry-leading technology of Holley EFI. For premium engine management solutions, check out the selection at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator-X Engine Management Kit \\u2014 Fits Ford 2V Mod Motor\",\"description\":\"Take full control of your Ford 2-Valve Modular engine with the Holley EFI Terminator-X kit. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator-X Engine Management Kit \\u2014 Fits Ford 2V Mod Motor?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880370483284,"sku":"GVMR_550-1216","price":1843.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-1216.jpg?v=1714511026"},{"product_id":"terminator-x-mpfi-engine-controls-ford-mod-2v-4v","title":"Holley EFI Terminator X MPFI Engine Management System — Fits Ford Modular 2V\/4V Engines","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/jKSDyIwYDD0\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUnlock Maximum Performance with Holley EFI Terminator X\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X MPFI system is the ultimate engine management solution for Ford Modular 2V and 4V engines. Designed to replace outdated factory ECUs, this system provides complete control over your ignition timing, fuel delivery, and engine diagnostics. Whether you are building a street machine or a dedicated track car, the Terminator X offers the flexibility and reliability needed for high-horsepower builds.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePlug-and-play integration for Ford Modular 2V\/4V engines\u003c\/li\u003e\n\u003cli\u003eIncludes high-speed NTK wideband oxygen sensor for precise AFR tuning\u003c\/li\u003e\n\u003cli\u003eIntegrated data logging to monitor engine health and performance\u003c\/li\u003e\n\u003cli\u003eFully customizable software via the handheld controller or laptop\u003c\/li\u003e\n\u003cli\u003eSupports boost control, nitrous injection, and advanced timing maps\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis kit includes a specialized wiring harness designed to simplify installation, reducing the time spent under the hood. By utilizing the advanced Terminator X ECU, you can achieve smoother idle, improved throttle response, and significant power gains across the entire RPM range. The system is built to withstand the rigors of racing while remaining user-friendly for daily driving applications. Trust your engine management needs to the experts at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X MPFI Engine Management System \\u2014 Fits Ford Modular 2V\/4V Engines\",\"description\":\"Upgrade to Holley EFI Terminator X for your Ford Modular 2V\/4V engine. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X MPFI Engine Management System \\u2014 Fits Ford Modular 2V\/4V ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880372744276,"sku":"GVMR_550-1220","price":1899.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-1220.jpg?v=1714511228"},{"product_id":"terminator-x-max-ford-mod-4v-motor","title":"Holley EFI Terminator X Max Engine Controls - 3.5\" Touchscreen — Fits Ford Modular 4V","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eUnleash Peak Performance with Holley EFI Terminator X Max for Ford Modular 4V\u003c\/h2\u003e\u003cp\u003eElevate your \u003cb\u003eFord Modular 4V engine\u003c\/b\u003e to its ultimate potential with the advanced \u003cb\u003eHolley EFI Terminator X Max Engine Control Kit\u003c\/b\u003e. This comprehensive system is engineered for those demanding the highest level of control and features, including \u003cb\u003eDrive By Wire (DBW)\u003c\/b\u003e and full \u003cb\u003etransmission control\u003c\/b\u003e. With its intuitive \u003cb\u003e3.5-inch touchscreen\u003c\/b\u003e, tuning and monitoring are more accessible than ever, providing a complete solution for modernizing your high-performance Ford.\u003c\/p\u003e\u003ch3\u003eAdvanced Features for Ultimate Control:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated Transmission Control:\u003c\/b\u003e Seamlessly manage automatic transmissions for optimal shift points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDrive By Wire (DBW) Support:\u003c\/b\u003e Modern throttle control for improved drivability and precision.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e3.5-inch Touchscreen:\u003c\/b\u003e Full-color display for real-time data, tuning, and diagnostics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFord Modular 4V Specific:\u003c\/b\u003e Optimized for 24x reluctor wheel applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComplete Kit:\u003c\/b\u003e Includes ECM, wiring harness, and all necessary components for installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Terminator X Max goes beyond basic engine management, offering sophisticated control over every aspect of your powertrain. From street cruising to aggressive track use, this system provides the flexibility and power needed to achieve your performance goals with confidence.\u003c\/p\u003e\u003ch3\u003eSpecifications:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSystem Type:\u003c\/b\u003e Terminator X Max\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEngine Compatibility:\u003c\/b\u003e Ford Modular 4V (24x Reluctor Wheel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKey Features:\u003c\/b\u003e Drive By Wire, Transmission Control, 3.5-inch Touchscreen\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIncluded Components:\u003c\/b\u003e Engine Control Module (ECM), Wiring Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e 550-1319\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eExperience the pinnacle of engine and transmission control for your Ford Modular 4V with the Holley EFI Terminator X Max, available at GGCRACING.COM.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X Max Engine Controls - 3.5\\\" Touchscreen \\u2014 Fits Ford Modular 4V\",\"description\":\"Maximize your Ford Modular 4V's potential with Holley EFI Terminator X Max. Features 3.5\\\" touchscreen, DBW, and transmission control. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-1319\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-ford-mod-4v-motor\",\"offers\":{\"@type\":\"Offer\",\"price\":\"2299.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-ford-mod-4v-motor\",\"sku\":\"GVMR_550-1319\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X Max Engine Controls - 3.5\\\" Touchscreen \\u2014 Fits Ford Modular 4V\",\"item\":\"https:\/\/ggcracing.com\/products\/terminator-x-max-ford-mod-4v-motor\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X Max Engine Controls - 3.5\\\" Touchscreen \\u2014 Fits Ford Modul fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X Max Engine Controls - 3.5\\\" Touchscreen \\u2014 Fits Ford Modul?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880373661780,"sku":"GVMR_550-1319","price":2399.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-1319.jpg?v=1714511283"},{"product_id":"hp-ecu-harness-ls1-ls6-ntk","title":"Holley EFI HP ECU \u0026 Harness Kit - LS1\/LS6 - 24x Reluctor","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/GeNmuvvFBz0\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUnleash LS1\/LS6 Potential with Holley EFI HP ECU \u0026amp; Harness Kit\u003c\/h2\u003e\u003cp\u003eGain ultimate control over your \u003cb\u003eGM LS1\/LS6-Series engine\u003c\/b\u003e with the powerful \u003cb\u003eHolley EFI HP ECU \u0026amp; Harness Kit\u003c\/b\u003e. This comprehensive engine management system provides unparalleled tuning capabilities, allowing you to optimize every aspect of your engine's performance. Designed specifically for \u003cb\u003e24x reluctor wheel LS1\/LS6 engines\u003c\/b\u003e, this kit is the cornerstone for serious performance builds and swaps.\u003c\/p\u003e\u003ch3\u003eAdvanced Engine Control and Precision Tuning\u003c\/h3\u003e\u003cp\u003eThe Holley HP EFI Engine Control Module (ECU) is renowned for its robust processing power and extensive feature set, supporting a wide array of engine configurations and power adders. This kit includes a high-quality \u003cb\u003eNTK Oxygen Sensor\u003c\/b\u003e, ensuring accurate and rapid air\/fuel ratio feedback for precise tuning. The included wiring harness is meticulously designed for a clean and straightforward installation, minimizing complexity and maximizing reliability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eECU Type:\u003c\/b\u003e Holley HP EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEngine Fitment:\u003c\/b\u003e GM LS1 \/ LS6-Series (24x Reluctor Wheel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOxygen Sensor:\u003c\/b\u003e NTK Wideband O2 Sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComponents:\u003c\/b\u003e ECU, Wiring Harness, NTK O2 Sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCapabilities:\u003c\/b\u003e Advanced tuning, data logging, power adder support\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eComplete Solution for LS Performance\u003c\/h3\u003e\u003cp\u003eWhether you're building a high-horsepower race car or a finely tuned street machine, the Holley EFI HP ECU \u0026amp; Harness Kit provides the flexibility and control you need. From fuel and ignition timing to idle control and fan activation, every parameter is at your command. Experience improved drivability, enhanced power output, and the peace of mind that comes with a state-of-the-art engine management system. This kit is your all-in-one solution for maximizing the potential of your LS1 or LS6 engine.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI HP ECU \u0026 Harness Kit \\u2014 LS1\/LS6, NTK O2 Sensor, 24x Reluctor\",\"description\":\"Take control of your LS1\/LS6 with the Holley EFI HP ECU \u0026 Harness Kit. Includes NTK O2 sensor for precise tuning on 24x reluctor engines. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-602N\",\"url\":\"https:\/\/ggcracing.com\/products\/hp-ecu-harness-ls1-ls6-ntk\",\"offers\":{\"@type\":\"Offer\",\"price\":\"2969.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/hp-ecu-harness-ls1-ls6-ntk\",\"sku\":\"GVMR_550-602N\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI HP ECU \u0026 Harness Kit \\u2014 LS1\/LS6, NTK O2 Sensor, 24x Reluctor\",\"item\":\"https:\/\/ggcracing.com\/products\/hp-ecu-harness-ls1-ls6-ntk\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI HP ECU \u0026 Harness Kit \\u2014 LS1\/LS6, NTK O2 Sensor, 24x Reluctor fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI HP ECU \u0026 Harness Kit \\u2014 LS1\/LS6, NTK O2 Sensor, 24x Reluctor?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880376807508,"sku":"GVMR_550-602N","price":3099.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-602N.jpg?v=1714511516"},{"product_id":"ecu-wiring-harness-ls1","title":"Holley EFI HP ECU \u0026 Wiring Harness Kit — Fits GM LS1\/LS6 Engines","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/M2RwQoyiFHE\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eFoundation for Performance: Holley HP EFI ECU \u0026amp; Wiring Harness Kit for LS1\/LS6\u003c\/h2\u003e\u003cp\u003eBuild your high-performance GM LS1 or LS6 engine with confidence using the Holley HP EFI Engine Control Unit (ECU) and Wiring Harness Kit. This essential package provides the core components needed to manage your engine's fuel and ignition systems, offering a robust and flexible platform for engine swaps, custom projects, and performance upgrades. Lay the groundwork for exceptional power and reliable operation with Holley's proven technology.\u003c\/p\u003e\u003ch3\u003eCore Components for Your LS Build:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHolley HP EFI ECU:\u003c\/strong\u003e A versatile and powerful engine control module, ready for advanced tuning and engine strategies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDedicated Wiring Harness:\u003c\/strong\u003e Comprehensive harness designed for GM LS1\/LS6 engines with 24x reluctor wheels, simplifying installation and ensuring proper connectivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24x Reluctor Wheel Support:\u003c\/strong\u003e Fully compatible with the common 24x crank reluctor found in many LS1\/LS6 engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Calibrations Included:\u003c\/strong\u003e Get your engine running quickly with pre-loaded base maps, then fine-tune for optimal performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Construction:\u003c\/strong\u003e Engineered for durability and reliability in demanding automotive environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSimplified Engine Management for LS Swaps\u003c\/h3\u003e\u003cp\u003eThe Holley HP EFI ECU and Wiring Harness Kit (550-602) is an indispensable tool for anyone undertaking an LS1 or LS6 engine swap. It eliminates the complexity of adapting factory wiring, providing a clean, purpose-built solution that integrates seamlessly. This kit empowers you to achieve precise control over your engine's performance, from idle stability to wide-open throttle power, making it easier to bring your project to life.\u003c\/p\u003e\u003ch3\u003eWhy Trust Holley EFI for Your LS Project?\u003c\/h3\u003e\u003cp\u003eHolley EFI stands at the forefront of aftermarket engine management, delivering products that combine innovation with rock-solid reliability. This HP ECU and harness kit provides the essential building blocks for a successful LS performance build, offering the flexibility and control you need to push boundaries. Elevate your engine's performance with Holley EFI, available at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI HP ECU \u0026 Wiring Harness Kit \\u2014 Fits GM LS1\/LS6 Engines\",\"description\":\"Upgrade your LS1 or LS6 with the Holley HP EFI ECU and wiring harness kit. Essential for engine swaps and high-performance builds. Achieve optimal control and power!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-602\",\"url\":\"https:\/\/ggcracing.com\/products\/ecu-wiring-harness-ls1\",\"offers\":{\"@type\":\"Offer\",\"price\":\"2719.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/ecu-wiring-harness-ls1\",\"sku\":\"GVMR_550-602\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI HP ECU \u0026 Wiring Harness Kit \\u2014 Fits GM LS1\/LS6 Engines\",\"item\":\"https:\/\/ggcracing.com\/products\/ecu-wiring-harness-ls1\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI HP ECU \u0026 Wiring Harness Kit \\u2014 Fits GM LS1\/LS6 Engines fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI HP ECU \u0026 Wiring Harness Kit \\u2014 Fits GM LS1\/LS6 Engines?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. 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At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/M2RwQoyiFHE\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUnlock Maximum Performance with Holley EFI HP\u003c\/h2\u003e\u003cp\u003eThe Holley EFI HP ECU \u0026amp; Harness Kit is the ultimate engine management solution for enthusiasts running GM TPI or Holley Stealth Ram systems. Designed for precision and reliability, this kit replaces outdated factory computers with a high-performance, programmable system that puts you in complete control of your engine's fuel and spark maps.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes the HP EFI ECU and a vehicle-specific wiring harness for a streamlined installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Tuning:\u003c\/strong\u003e Offers comprehensive control over fuel injection, ignition timing, and auxiliary outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Learning Technology:\u003c\/strong\u003e Simplifies the tuning process by automatically adjusting fuel tables for optimal performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Construction:\u003c\/strong\u003e Built to withstand the harsh environment of the engine bay while providing consistent data processing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are building a street machine or a track-ready beast, this HP EFI system provides the flexibility needed to dial in your setup for maximum horsepower and drivability. Say goodbye to restrictive factory limitations and embrace the power of modern digital engine management. Experience the difference in throttle response and efficiency that only a professional-grade Holley EFI system can provide. For all your high-performance automotive needs, trust the experts at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI HP ECU \u0026 Harness Kit \\u2014 Fits GM TPI \u0026 Holley Stealth Ram\",\"description\":\"Upgrade your engine management with the Holley EFI HP ECU \u0026 Harness Kit for GM TPI and Stealth Ram systems. 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Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-601\",\"url\":\"https:\/\/ggcracing.com\/products\/ecu-harness-kit-gm-tpi-holley-stealth-ram\",\"offers\":{\"@type\":\"Offer\",\"price\":\"2347.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/ecu-harness-kit-gm-tpi-holley-stealth-ram\",\"sku\":\"GVMR_550-601\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI HP ECU \u0026 Harness Kit \\u2014 Fits GM TPI \u0026 Holley Stealth Ram\",\"item\":\"https:\/\/ggcracing.com\/products\/ecu-harness-kit-gm-tpi-holley-stealth-ram\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI HP ECU \u0026 Harness Kit \\u2014 Fits GM TPI \u0026 Holley Stealth Ram fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI HP ECU \u0026 Harness Kit \\u2014 Fits GM TPI \u0026 Holley Stealth Ram?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. 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At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/jKSDyIwYDD0\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eReliable Performance with Terminator X Service Unit\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator X ECU Service Unit is the ideal solution for those needing a direct replacement or a standalone brain for their custom EFI build. This unit delivers the same powerful processing and user-friendly tuning interface that has made the Terminator X series a favorite among performance builders. Engineered for durability and precision, this service unit ensures your engine runs at its peak.\u003c\/p\u003e\u003ch3\u003eIncluded Components and Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminator X ECU:\u003c\/strong\u003e High-speed processor for real-time engine management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Harness:\u003c\/strong\u003e Pre-terminated harness simplifies the installation process.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMAP Sensor:\u003c\/strong\u003e Includes a high-quality sensor for accurate load sensing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Application:\u003c\/strong\u003e Compatible with a wide range of engine configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are troubleshooting an existing system or starting a new project, this service unit provides the reliability you need. The Terminator X platform is renowned for its ease of use, allowing you to quickly configure your engine parameters for optimal power and efficiency. Don't let a faulty ECU keep you off the track or the street. Upgrade to the proven performance of the Holley Terminator X series and experience consistent, reliable engine control. For top-tier automotive components, look no further than GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X ECU Service Unit \\u2014 Universal Replacement\",\"description\":\"Need a replacement? 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See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880376938580,"sku":"GVMR_554-152","price":913.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY554-152.jpg?v=1714511553"},{"product_id":"ecu-only-dominator","title":"Holley EFI Dominator ECU Only — Universal High-Performance Controller","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/hMXJ44eD7Qc\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eThe Ultimate Brain for Your High-Performance Build\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Dominator ECU is the pinnacle of engine management technology. This 'ECU Only' package is designed for builders who are crafting a custom wiring solution or upgrading an existing high-end setup. With unmatched processing power and an extensive array of inputs and outputs, the Dominator is capable of managing even the most complex engine combinations, from naturally aspirated street cars to twin-turbo race machines.\u003c\/p\u003e\u003ch3\u003eDominator ECU Capabilities\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Control:\u003c\/strong\u003e Manages complex fuel injection, ignition timing, and power adders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtensive I\/O:\u003c\/strong\u003e Features numerous inputs and outputs for custom sensors and accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Logging:\u003c\/strong\u003e Built-in high-speed data logging to analyze performance and track progress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Works with almost any engine configuration, providing total control.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhen you choose the Dominator, you are choosing a system that grows with your build. Its robust architecture allows for sophisticated tuning strategies, including traction control, boost control, and nitrous management. This is the professional choice for those who refuse to compromise on performance or reliability. Take full control of your engine's potential with the most advanced ECU on the market. For expert advice and the best selection of performance parts, visit GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Dominator ECU Only \\u2014 Universal High-Performance Controller\",\"description\":\"Get the power of the Holley Dominator EFI system. This ECU-only unit is perfect for custom builds and advanced engine management. Shop at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"554-114\",\"url\":\"https:\/\/ggcracing.com\/products\/ecu-only-dominator\",\"offers\":{\"@type\":\"Offer\",\"price\":\"2399.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/ecu-only-dominator\",\"sku\":\"GVMR_554-114\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Dominator ECU Only \\u2014 Universal High-Performance Controller\",\"item\":\"https:\/\/ggcracing.com\/products\/ecu-only-dominator\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Dominator ECU Only \\u2014 Universal High-Performance Controller fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Dominator ECU Only \\u2014 Universal High-Performance Controller?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880377036884,"sku":"GVMR_554-114","price":2499.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY554-114.jpg?v=1714511562"},{"product_id":"ecu-wiring-harness-ls2","title":"Holley EFI HP ECU \u0026 Wiring Harness Kit — Fits GM LS2, LS3, LS7 Engines with 58x Reluctor","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/M2RwQoyiFHE\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eMaximize LS Power: Holley EFI HP ECU \u0026amp; Wiring Harness Kit for LS2\/LS3\/LS7 (58x Reluctor)\u003c\/h2\u003e\u003cp\u003eUnleash the full, modern potential of your GM LS2, LS3, or LS7 engine with this purpose-built Holley EFI HP ECU and Wiring Harness Kit. Specifically engineered for LS-series engines equipped with a 58x reluctor wheel, this comprehensive package provides a seamless and powerful upgrade to your engine management system. Experience improved throttle response, enhanced fuel efficiency, and significant horsepower gains, all while maintaining the legendary reliability of your LS platform.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Performance Benefits:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDedicated HP EFI Control:\u003c\/strong\u003e Benefit from Holley's advanced HP EFI technology, precisely managing fuel delivery and ignition timing for optimal power and efficiency in your LS engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication-Specific Wiring Harness:\u003c\/strong\u003e Includes a meticulously crafted, pre-terminated wiring harness designed specifically for 58x reluctor LS2, LS3, and LS7 engines, ensuring a clean, reliable, and straightforward installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning Capabilities:\u003c\/strong\u003e Get your LS running perfectly with intelligent self-tuning algorithms that continuously adapt to your engine's specific needs, providing excellent drivability and consistent performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad Sensor Compatibility:\u003c\/strong\u003e Supports a wide range of common LS engine sensors, making integration with your existing setup simple and effective.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePrecision Fitment for Modern LS Engines:\u003c\/h3\u003e\u003cp\u003eThis Holley EFI HP ECU and Harness Kit is precisely engineered for GM LS-Series engines, including the popular LS2, LS3, and LS7 models that utilize a 58x reluctor wheel. It offers a direct-fit solution, eliminating the complexities often associated with aftermarket EFI conversions on these powerful platforms.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eECU Type:\u003c\/strong\u003e Holley HP EFI Engine Control Module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Configuration:\u003c\/strong\u003e Specific for GM LS2\/LS3\/LS7 (58x Reluctor)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 550-603\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e HP ECU, Main Wiring Harness, Installation Guide\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Upgrade Your LS with Holley HP EFI?\u003c\/h3\u003e\u003cp\u003eUpgrading to the Holley EFI HP ECU \u0026amp; Wiring Harness Kit means unlocking the true potential of your LS2, LS3, or LS7. Enjoy superior engine control, improved drivability, and the confidence that comes with a robust, high-performance EFI system. It's the ultimate choice for enthusiasts seeking to maximize their modern LS engine's output. Find this and more at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI HP ECU \u0026 Wiring Harness Kit \\u2014 Fits GM LS2, LS3, LS7 Engines with 58x Reluctor\",\"description\":\"Optimize your GM LS2, LS3, or LS7 engine with the Holley EFI HP ECU \u0026 Wiring Harness Kit. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI HP ECU \u0026 Wiring Harness Kit \\u2014 Fits GM LS2, LS3, LS7 Engines with 58x ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880377069652,"sku":"GVMR_550-603","price":2421.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-603.jpg?v=1714511572"},{"product_id":"hp-series-efi-ecu-only","title":"Holley EFI HP Series ECU Only - Universal Engine Control Module - P\/N 554-113","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/8T1vhD4IQFQ\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eCore Performance: Holley EFI HP Series ECU Only\u003c\/h2\u003e\u003cp\u003eFor enthusiasts seeking robust and versatile engine management without the need for a full kit, the \u003cb\u003eHolley EFI HP Series ECU Only (P\/N 554-113)\u003c\/b\u003e is the ideal solution. This standalone Engine Control Module provides powerful control capabilities for a wide range of street and mild racing applications, offering a perfect balance of advanced features and user-friendliness.\u003c\/p\u003e\u003ch3\u003eFlexible Engine Management for Diverse Builds\u003c\/h3\u003e\u003cp\u003eThe HP EFI ECU is a highly capable unit, perfect for those who already possess a compatible wiring harness and sensors, or are crafting a custom EFI setup. It provides comprehensive control over fuel and ignition, supports various sensor inputs, and offers excellent data logging capabilities. Its universal design ensures compatibility with numerous engine configurations, making it a go-to choice for many performance projects.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUniversal Fitment:\u003c\/b\u003e Adaptable to a broad spectrum of engine types and vehicles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCore EFI Control:\u003c\/b\u003e Manages essential fuel and ignition parameters with precision.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eData Logging:\u003c\/b\u003e Built-in functionality for performance monitoring and tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eExpandable System:\u003c\/b\u003e Compatible with a wide array of Holley EFI sensors and accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProven Reliability:\u003c\/b\u003e Holley's reputation for quality and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Smart Choice for Performance Upgrades\u003c\/h3\u003e\u003cp\u003eChoosing the Holley EFI HP Series ECU (554-113) means investing in a high-quality, reliable engine management system that can grow with your performance needs. It's an excellent option for upgrading from an older EFI system or as the central brain for a new build where you prefer to source other components separately. Experience the precision and power of Holley EFI for your vehicle.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI HP Series ECU Only - Universal Engine Control Module - P\/N 554-113\",\"description\":\"Upgrade your EFI system with the Holley HP Series EFI ECU Only (P\/N 554-113). Universal, powerful engine control for street and mild race applications. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"554-113\",\"url\":\"https:\/\/ggcracing.com\/products\/hp-series-efi-ecu-only\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1843.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/hp-series-efi-ecu-only\",\"sku\":\"GVMR_554-113\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI HP Series ECU Only - Universal Engine Control Module - P\/N 554-113\",\"item\":\"https:\/\/ggcracing.com\/products\/hp-series-efi-ecu-only\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI HP Series ECU Only - Universal Engine Control Module - P\/N 554-113 fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI HP Series ECU Only - Universal Engine Control Module - P\/N 554-113?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880377135188,"sku":"GVMR_554-113","price":1783.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY554-113.jpg?v=1714511590"},{"product_id":"input-output-can-module-w-harness","title":"Holley EFI Input\/Output CAN Module w\/Harness — Universal Expansion","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/-m1wkAXWjv8\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eExpand Your EFI System Capabilities\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Input\/Output (I\/O) CAN Module is the perfect solution for users who have run out of available pins on their main ECU. This module allows you to easily add more sensors, switches, and control devices to your Holley EFI system via the CAN bus. Whether you need to monitor additional temperatures, pressures, or control auxiliary cooling fans and pumps, this module provides the extra capacity you need.\u003c\/p\u003e\u003ch3\u003eKey Features of the I\/O CAN Module\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless Expansion:\u003c\/strong\u003e Connects via CAN bus for easy integration with your existing system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncreased I\/O Capacity:\u003c\/strong\u003e Adds multiple inputs and outputs for advanced vehicle monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Harness:\u003c\/strong\u003e Includes a dedicated wiring harness for a clean and professional installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Design:\u003c\/strong\u003e Compatible with various Holley EFI systems for maximum flexibility.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBy utilizing the CAN bus architecture, this module keeps your wiring clean and simplifies the addition of complex features to your build. It is an essential component for high-end projects that require extensive data monitoring and accessory control. Don't let a lack of inputs hold back your project's potential. Expand your system's capabilities and gain better control over your vehicle's performance. For all your performance electronics and expansion needs, trust the team at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Input\/Output CAN Module w\/Harness \\u2014 Universal Expansion\",\"description\":\"Expand your Holley EFI system with the I\/O CAN Module. 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At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/pEqcCIG9Tr4\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003ePrecision Engine Management with Holley EFI HP\u003c\/h2\u003e\u003cp\u003eTake full control of your V8 engine performance with the \u003cstrong\u003eHolley EFI HP ECU \u0026amp; Harness Kit\u003c\/strong\u003e. Designed for enthusiasts who demand precision, this kit includes the advanced HP ECU and a comprehensive MPFI wiring harness. The integration of the NTK wideband oxygen sensor ensures real-time, accurate air\/fuel ratio monitoring, allowing for superior tuning capabilities and engine safety under high-load conditions.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced HP ECU:\u003c\/strong\u003e Powerful processing for complex fuel and ignition mapping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNTK Sensor Included:\u003c\/strong\u003e Industry-leading wideband accuracy for precise tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play Harness:\u003c\/strong\u003e Simplified installation for V8 Multi-Port Fuel Injection setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomizable Tuning:\u003c\/strong\u003e Fully programmable software to optimize your specific engine build.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Built to withstand the rigors of high-performance racing environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are building a street machine or a dedicated track car, the Holley EFI HP system provides the flexibility and reliability required for maximum horsepower. This kit removes the guesswork from fuel injection management, providing a stable platform for your engine's specific needs. Experience the difference in throttle response and overall efficiency with this professional-grade controller. For all your high-performance electronic needs, trust the experts at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI HP ECU \u0026 Harness MPFI System \\u2014 NTK Wideband V8 Kit\",\"description\":\"Upgrade your engine management with the Holley EFI HP ECU \u0026 Harness Kit featuring NTK wideband sensor. 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At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/jKSDyIwYDD0\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUnlock V8 Performance with Holley EFI HP\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eHolley EFI HP ECU \u0026amp; Harness MPFI Kit\u003c\/strong\u003e is the ultimate solution for enthusiasts looking to modernize their V8 fuel injection system. This kit provides a robust engine management platform, featuring the highly capable HP ECU paired with a vehicle-specific wiring harness designed for seamless integration. By replacing outdated systems with Holley's advanced technology, you gain precise control over fuel delivery and ignition timing, resulting in improved power, efficiency, and drivability.\u003c\/p\u003e\u003ch3\u003eWhy Choose Holley EFI HP?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Kit:\u003c\/strong\u003e Includes ECU and high-quality wiring harness for a complete install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eV8 Optimized:\u003c\/strong\u003e Specifically calibrated for Multi-Port Fuel Injection applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Friendly Software:\u003c\/strong\u003e Intuitive interface for professional-level tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliability:\u003c\/strong\u003e Engineered to handle high-performance demands and harsh racing conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScalability:\u003c\/strong\u003e Easily upgradeable for future engine modifications or power adders.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis system is perfect for those who want to maximize the potential of their engine build without the complexity of a full-blown race system. The HP ECU offers extensive data logging and diagnostic capabilities, ensuring you can monitor your engine's health in real-time. Upgrade your ignition and fuel management today with this reliable kit from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI HP ECU \u0026 Harness MPFI System \\u2014 V8 Multi Port Kit\",\"description\":\"Optimize your V8 engine with the Holley EFI HP ECU \u0026 Harness MPFI Kit. High-performance fuel injection control for your build. Order from GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-604\",\"url\":\"https:\/\/ggcracing.com\/products\/ecu-harness-mpfi-kit\",\"offers\":{\"@type\":\"Offer\",\"price\":\"2609.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/ecu-harness-mpfi-kit\",\"sku\":\"GVMR_550-604\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI HP ECU \u0026 Harness MPFI System \\u2014 V8 Multi Port Kit\",\"item\":\"https:\/\/ggcracing.com\/products\/ecu-harness-mpfi-kit\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI HP ECU \u0026 Harness MPFI System \\u2014 V8 Multi Port Kit fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI HP ECU \u0026 Harness MPFI System \\u2014 V8 Multi Port Kit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880377233492,"sku":"GVMR_550-604","price":2336.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-604.jpg?v=1714511619"},{"product_id":"hp-ecu-harness-ford-mpfi-ntk","title":"Holley EFI HP ECU \u0026 Harness Kit","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/XfJP7TgDQUs\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003ePrecision Engine Management for Ford MPFI: Holley EFI HP ECU \u0026amp; Harness Kit with NTK O2 Sensor\u003c\/h2\u003e\u003cp\u003eSpecifically engineered for Ford Multi-Port Fuel Injection (MPFI) systems, the Holley EFI HP ECU \u0026amp; Harness Kit, complete with an NTK Oxygen Sensor, offers a tailored solution for maximizing your Ford engine's potential. This all-inclusive package provides the advanced control and accurate feedback necessary to achieve optimal performance, fuel efficiency, and reliability in your Ford vehicle. It's the ultimate upgrade for Ford enthusiasts demanding superior engine management.\u003c\/p\u003e\u003ch3\u003eFord-Specific Features for Optimal Performance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHolley EFI HP ECU:\u003c\/b\u003e A powerful engine control unit optimized for Ford MPFI applications, ensuring seamless integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication-Specific Wiring Harness:\u003c\/b\u003e A high-quality, pre-terminated harness designed to fit Ford MPFI systems, simplifying installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNTK Wideband Oxygen Sensor:\u003c\/b\u003e Delivers highly accurate air\/fuel ratio (AFR) data crucial for precise tuning and adaptive learning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFord Multi-Port Fuel Injection Compatibility:\u003c\/b\u003e Expertly designed for direct fitment and optimal performance with Ford MPFI engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSelf-Tuning Capabilities:\u003c\/b\u003e Leverages O2 sensor feedback for automatic fuel map adjustments, streamlining the tuning process for Ford platforms.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTailored Control for Your Ford Engine\u003c\/h3\u003e\u003cp\u003eThe Holley EFI HP ECU \u0026amp; Harness Kit with an NTK O2 sensor provides a comprehensive and precise engine management solution for your Ford MPFI system. The HP ECU's robust processing power, combined with the accuracy of the NTK wideband sensor, allows for incredibly detailed tuning of fuel delivery and ignition timing. This Ford-specific optimization translates to improved throttle response, significant horsepower gains, and a smoother, more efficient running engine, perfectly suited to the unique characteristics of Ford powerplants.\u003c\/p\u003e\u003ch3\u003eWhy This Ford-Specific Kit Excels\u003c\/h3\u003e\u003cp\u003eFor Ford MPFI owners, this Holley EFI HP ECU and harness kit with an NTK O2 sensor represents the pinnacle of aftermarket engine management. Its Ford-specific design ensures compatibility and ease of installation, while the advanced components guarantee superior performance and tuning accuracy. Invest in this kit to unlock the true potential of your Ford engine with confidence and precision.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI HP ECU \u0026 Harness Kit - Ford MPFI with NTK O2 Sensor - Complete Engine Management\",\"description\":\"Optimize your Ford Multi-Port Fuel Injection system with the Holley EFI HP ECU, harness, and NTK O2 sensor kit. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI HP ECU \u0026 Harness Kit - Ford MPFI with NTK O2 Sensor - Complete Engine?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. 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At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/0Nhrw4Pe_-Q\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eCustom Engine Management with Holley EFI\u003c\/h2\u003e\u003cp\u003eFor custom engine builds where standard harnesses won't fit, the \u003cstrong\u003eHolley EFI HP ECU \u0026amp; Unterminated Wire Harness Kit\u003c\/strong\u003e is the professional choice. This package provides the powerful HP ECU along with a universal, unterminated wiring harness, allowing you to create a clean, custom installation tailored exactly to your engine bay layout. It is the ideal foundation for unique engine swaps, experimental builds, or race cars requiring a bespoke electrical setup.\u003c\/p\u003e\u003ch3\u003eTechnical Advantages\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnterminated Flexibility:\u003c\/strong\u003e Allows for custom wire routing and length optimization.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHP ECU Power:\u003c\/strong\u003e High-speed processing for complex fuel and ignition strategies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Works with a wide variety of engine configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Features:\u003c\/strong\u003e Supports data logging, multiple ignition types, and sensor inputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Finish:\u003c\/strong\u003e Enables a clean, hidden, or custom-routed wiring installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis kit is designed for experienced builders who demand total control over their vehicle's electrical architecture. By utilizing an unterminated harness, you can ensure that every connection is exactly where it needs to be, reducing clutter and potential failure points. Whether you are running a custom turbo setup or a naturally aspirated monster, this Holley EFI kit provides the processing power and reliability you need to dominate. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI HP ECU \u0026 Unterminated Wire Harness \\u2014 Universal Kit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880377495636,"sku":"GVMR_550-605","price":2609.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-605.jpg?v=1714511649"},{"product_id":"terminator-x-max-mpfi-gm-ls-58x-truck-engines","title":"Holley EFI Terminator X-Max MPFI GM LS 58x Truck Engine Kit — LS Conversion","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/tkD3e9BOQ0A\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eThe Ultimate LS Engine Management\u003c\/h2\u003e\u003cp\u003eUnlock the full potential of your GM LS engine with the Holley EFI Terminator X-Max. This comprehensive kit is specifically designed for 58x reluctor wheel truck engines, offering complete control over your fuel injection, ignition timing, drive-by-wire throttle bodies, and electronic transmissions like the 4L60E and 4L80E. Whether you are performing an engine swap or upgrading a factory setup, the Terminator X-Max provides the tuning flexibility and performance you demand.\u003c\/p\u003e\u003ch3\u003eAdvanced Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive-By-Wire Support:\u003c\/strong\u003e Seamlessly integrates with modern electronic throttle bodies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransmission Control:\u003c\/strong\u003e Built-in logic for 4L60E\/4L80E electronic transmissions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Uses advanced software to learn and optimize your air\/fuel ratios.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play Harness:\u003c\/strong\u003e Designed for factory GM LS truck engine sensors.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Terminator X-Max is more than just an ECU; it is a complete engine management ecosystem. With its intuitive software, you can easily adjust parameters, monitor engine health, and fine-tune your performance on the fly. The kit includes everything you need to get your LS-powered vehicle running smoothly and efficiently. From street-driven trucks to high-performance drag cars, this system delivers consistent, reliable power. Experience the next level of LS tuning and take control of your engine's performance with the industry-leading technology available at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X-Max MPFI GM LS 58x Truck Engine Kit \\u2014 LS Conversion\",\"description\":\"Upgrade your GM LS truck engine with the Holley Terminator X-Max. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X-Max MPFI GM LS 58x Truck Engine Kit \\u2014 LS Conversion?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880384344148,"sku":"GVMR_550-928T","price":1826.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-928T.jpg?v=1714511899"},{"product_id":"terminator-x-mpfi-kit-ford-mod-motor-4v","title":"Holley EFI Terminator X MPFI Kit — For Ford Modular 4V Engines with 3.5-inch Touchscreen","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eMaster Your Ford Modular 4V: Holley EFI Terminator X MPFI Kit\u003c\/h2\u003e\u003cp\u003eTransform your Ford Modular 4V engine with the cutting-edge \u003cb\u003eHolley EFI Terminator X MPFI Kit\u003c\/b\u003e. This comprehensive engine management system provides unparalleled control and tuning capabilities, allowing you to extract maximum power, efficiency, and drivability from your performance build. Designed specifically for Ford Modular 4V applications, this kit includes everything you need to upgrade to a modern, powerful EFI system, all controlled through an intuitive 3.5-inch touchscreen.\u003c\/p\u003e\u003ch3\u003eAdvanced EFI Control for Ford Modular:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eComplete MPFI Solution:\u003c\/b\u003e Integrates ECU, wiring harness, and touchscreen display for a seamless, all-in-one EFI conversion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFord Modular 4V Specific:\u003c\/b\u003e Engineered with dedicated harness and calibration strategies for optimal performance on 4-valve Modular Ford engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSelf-Learning Technology:\u003c\/b\u003e Features Holley's advanced self-learning fuel strategy, making initial setup and ongoing tuning simpler than ever.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e3.5-inch Touchscreen:\u003c\/b\u003e Provides real-time data monitoring, on-the-fly tuning adjustments, and diagnostic capabilities in a user-friendly interface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated Boost Control:\u003c\/b\u003e Built-in boost control functionality for turbocharged or supercharged applications, eliminating the need for external controllers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eData Logging:\u003c\/b\u003e Record critical engine parameters for in-depth analysis and further performance optimization.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNOS Control:\u003c\/b\u003e Capable of controlling single or dual stage nitrous oxide systems directly from the ECU.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Terminator X MPFI Kit is more than just an ECU; it's a complete ecosystem for your Ford Modular 4V. From precise fuel and ignition timing to advanced power adders, this system gives you the tools to dominate. Say goodbye to complex wiring and outdated tuning methods. Experience the future of engine management with Holley EFI, available at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X MPFI Kit \\u2014 For Ford Modular 4V Engines with 3.5-inch Touchscreen\",\"description\":\"Unleash your Ford Modular 4V engine's potential with the Holley EFI Terminator X MPFI Kit. 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Ultimate control!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"550-1219\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-ford-mod-motor-4v\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1949.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-ford-mod-motor-4v\",\"sku\":\"GVMR_550-1219\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Terminator X MPFI Kit \\u2014 For Ford Modular 4V Engines with 3.5-inch Touchscreen\",\"item\":\"https:\/\/ggcracing.com\/products\/terminator-x-mpfi-kit-ford-mod-motor-4v\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Terminator X MPFI Kit \\u2014 For Ford Modular 4V Engines with 3.5-inch Tou fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X MPFI Kit \\u2014 For Ford Modular 4V Engines with 3.5-inch Tou?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880386834516,"sku":"GVMR_550-1219","price":1843.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY550-1219.jpg?v=1714512254"},{"product_id":"terminator-x-max-mpfi-system-gm-ls-24x-1x-1","title":"Holley EFI Terminator X Max MPFI System 24X\/1X Drive-By-Wire — Fits GM LS-Series Engines","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/tkD3e9BOQ0A\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUltimate LS Engine Control with Terminator X Max\u003c\/h2\u003e\u003cp\u003eUnlock the full potential of your GM LS engine with the Holley EFI Terminator X Max MPFI System. Designed specifically for 24X\/1X reluctor wheel configurations, this advanced engine management system provides precise control over fuel, spark, and drive-by-wire throttle bodies. Whether you are building a street machine or a track-ready beast, the Terminator X Max offers the reliability and performance you demand.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull DBW Support:\u003c\/strong\u003e Integrated drive-by-wire control for modern throttle body setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play Harness:\u003c\/strong\u003e Simplifies installation for GM LS-series applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.5-Inch Touchscreen:\u003c\/strong\u003e Real-time monitoring and easy tuning adjustments at your fingertips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning Capability:\u003c\/strong\u003e Advanced software helps you dial in your air-fuel ratios faster.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpandable I\/O:\u003c\/strong\u003e Built-in inputs and outputs for additional sensors and accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Terminator X Max is engineered to replace restrictive factory ECUs, offering superior data logging and customizable tuning parameters. This kit includes everything needed to get your LS engine running smoothly, from the high-quality wiring harness to the intuitive handheld controller. Experience the precision of professional-grade engine management technology. For all your high-performance tuning needs, trust the experts at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator X Max MPFI System 24X\/1X Drive-By-Wire \\u2014 Fits GM LS-Series Engines\",\"description\":\"Upgrade to Holley EFI Terminator X Max for GM LS 24X\/1X engines. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator X Max MPFI System 24X\/1X Drive-By-Wire \\u2014 Fits GM LS-Series?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. 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