{"product_id":"sniper-2-efi-master-kit-returnless-retrofit-1","title":"Holley Sniper 2 EFI Master Kit Returnless Retrofit - Black Aluminum Throttle Body","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\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.\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\/nqfByzI6gJE\" 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 Ride with Holley Sniper 2 EFI Master Kit (Returnless)\u003c\/h2\u003e\u003cp\u003eTransform your classic vehicle with the cutting-edge \u003cb\u003eHolley Sniper 2 EFI Master Kit, specifically designed for returnless fuel system retrofits\u003c\/b\u003e. This comprehensive kit provides everything you need to convert your carbureted engine to modern electronic fuel injection, delivering superior performance, improved fuel efficiency, and reliable starts. The sleek black powder-coated aluminum throttle body offers a high-performance look that complements any engine bay.\u003c\/p\u003e\u003ch3\u003eOptimized for Returnless Fuel Systems\u003c\/h3\u003e\u003cp\u003eThe Sniper 2 EFI Master Kit for returnless applications simplifies your fuel system plumbing, making installation cleaner and more straightforward. Its advanced self-tuning capabilities ensure your engine receives the optimal air\/fuel mixture under all conditions, adapting in real-time for peak power and efficiency. Experience the next level of engine management with Holley's proven technology.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eReturnless Fuel System Compatible:\u003c\/b\u003e Simplified plumbing and installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBlack Powder Coat Finish:\u003c\/b\u003e Durable and aggressive aesthetic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated ECU:\u003c\/b\u003e Streamlined wiring and setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSelf-Tuning EFI:\u003c\/b\u003e Continuously optimizes fuel delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSquare Bore Throttle Body:\u003c\/b\u003e Direct fit for most 4-barrel intake manifolds.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eEffortless Performance Upgrade\u003c\/h3\u003e\u003cp\u003eThis master kit provides a complete solution for converting to EFI, ensuring a smooth transition and immediate benefits. Enjoy the enhanced drivability, consistent power delivery, and improved reliability that only modern electronic fuel injection can offer. Make the smart choice for your vehicle's future 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 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\/performance-carburetor-500cfm-street-avenger\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 500CFM Street Avenger 2-Barrel Carburetor — Aluminum Finish\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-750cfm-4160-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4160 Series Performance Carburetor 750CFM — Square Bore Aluminum\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/750-cfm-4150-hp-carb-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 750 CFM 4150 HP Double Pumper Carburetor 4-Barrel — Mechanical Secondary\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/competition-carburetor-1250cfm-4500-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4500 Series Dominator 1250 CFM 4-Barrel Competition Carburetor\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/650-cfm-classic-hp-carb-4150-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley Classic HP 4150 650 CFM 4-Barrel Carburetor — Mechanical Secondary Square Bore\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 Sniper 2 EFI Master Kit Returnless Retrofit - Black Aluminum Throttle Body\",\"description\":\"Upgrade to Holley Sniper 2 EFI with this Master Kit for returnless fuel systems. 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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?\",\"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 Sniper 2 EFI Master Kit Returnless Retrofit - Black Aluminum Throttle Bod?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. 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