{"product_id":"spark-plug-wire-set-gm-ls-use-w-oe-coils","title":"Holley EFI Spark Plug Wire Set - GM LS w\/ OE Coils, Spiral Core 8mm Black","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\/zKcsT9_vhBw\" 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\u003eHolley EFI Spark Plug Wire Set for GM LS Engines with OE Coils\u003c\/h2\u003e\u003cp\u003eUnleash the full potential of your GM LS-series engine with the \u003cb\u003eHolley EFI Spark Plug Wire Set\u003c\/b\u003e, specifically engineered for use with original equipment (OE) coils. This premium wire set ensures maximum spark delivery and minimal RFI interference, critical for modern EFI systems. Designed for both Small Block Chevy and LS-series applications, these wires provide a significant upgrade in ignition performance and reliability.\u003c\/p\u003e\u003ch3\u003eAdvanced Features for Superior Ignition:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSpiral Core Design:\u003c\/b\u003e Features an 8mm spiral core construction for excellent EMI\/RFI suppression, protecting sensitive electronics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOptimized for OE Coils:\u003c\/b\u003e Perfectly matched for use with factory GM LS coils, ensuring ideal conductivity and fitment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCut-to-Fit Versatility:\u003c\/b\u003e Allows for custom length adjustments, providing a clean, professional installation tailored to your engine bay.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Black Silicone Jacket:\u003c\/b\u003e Offers superior heat resistance, chemical protection, and a sleek, understated appearance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMulti-Angle Boots:\u003c\/b\u003e Includes both 135-degree and 180-degree spark plug boots to accommodate various header and manifold clearances.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you're building a new LS swap or upgrading your existing setup, these Holley EFI spark plug wires deliver consistent, powerful spark to every cylinder. Experience smoother idle, improved throttle response, and enhanced power output. Trust GGCRACING for your high-performance ignition needs.\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 Spark Plug Wire Set - GM LS w\/ OE Coils, Spiral Core 8mm Black\",\"description\":\"Upgrade your GM LS engine with Holley EFI Spark Plug Wire Set. 8mm spiral core, black, cut-to-fit, designed for OE coils. 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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 Spark Plug Wire Set - GM LS w\/ OE Coils, Spiral Core 8mm Black?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. 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