{"title":"Ignition Wiring Harnesses","description":null,"products":[{"product_id":"ford-mpfi-coil-on-plug-main-harness","title":"Ford MPFI Coil On Plug Main Harness","description":"This harness provides a plug and play upgrade solution for those seeking to convert to Coil-On-Plug. Additionally we have pre-installed a Power Tap for easy access to 12v, 5v Reference, and Sensor Grounds. The Ford MPFI C-O-P Main Harness has also been pre-terminated for the stock Pulse Width Modulated Idle Air Control motors commonly found on Fuel Injected Windsor 5.0L engines.","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":51711874564264,"sku":"GVMR_558-118","price":675.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/HLY558-118.jpg?v=1741292796"},{"product_id":"flying-lead-main-harness","title":"Unterminated 15' Flying Lead Main Harness","description":"The unterminated main harness comes with both J1A and J1B connectors full terminated with 15' of flying lead wiring.","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":51711877349544,"sku":"GVMR_558-126","price":449.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/HLY558-126.jpg?v=1741292817"},{"product_id":"hei-ignition-harness","title":"HEI GM Small Cap Ignition Harness","description":"HEI Ignition Harness for Avenger EFI, HP EFI \u0026amp; Dominator EFI","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":51711902646440,"sku":"GVMR_558-304","price":63.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/HLY558-304.jpg?v=1741292995"},{"product_id":"ford-tfi-ignition-harness","title":"Ford TFI Ignition Harness","description":"Ford TFI Ignition Harness for Avenger EFI, HP EFI \u0026amp; Dominator EFI","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":51711904383144,"sku":"GVMR_558-305","price":133.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/HLY558-305.jpg?v=1741293006"},{"product_id":"ls-coil-on-plug-harness-universal","title":"Universal Coil On\/Near Plug Harness","description":"Universal Coil On\/Near Plug Harness – Use to connect Holley PN 558-312 or factory GM LSx coil harnesses to Holley HP or Dominator ECU's","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":51711909363880,"sku":"GVMR_558-307","price":199.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/HLY558-307.jpg?v=1741293043"},{"product_id":"hp-efi-sub-harnesses-smart-coil","title":"HP Smart Coil Ignition Harness","description":"HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart Coils. They plug into Holley LSx plug and play main harnesses if one wants to replace factory LSx coils with Holley HP Smart Coils. If using a non-LSx main harness, purchase PN 558-307 for connectors, wiring, terminals to connect directly to a Holley HP or Dominator ECU","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":51711912935592,"sku":"GVMR_558-312","price":299.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/HLY558-312.jpg?v=1741293075"},{"product_id":"coil-harness-ford-4v-modular-engines","title":"Ford 4V Modular Coil Harness","description":"Coil harness for 99-04 4 Valve Ford Modular (4.6 and 5.4L) engines.","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":51711914737832,"sku":"GVMR_558-315","price":247.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/HLY558-315.jpg?v=1741293094"},{"product_id":"coil-near-plug-sub-harness-big-wire","title":"C-N-P Ignition Sub Harness","description":"\"Big Wire\" Sub Harness- pre wired with 12ga power and grounds, for optimal performance!","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":51711917228200,"sku":"GVMR_558-318","price":304.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/HLY558-318.jpg?v=1741293113"},{"product_id":"gm-ls-coil-sub-harnesses","title":"LS COIL HARNESSES","description":"Are you tired of scouring the junkyard for stock ls coil sub harnesses? Introducing the new Holley EFI LS Coil Sub Harness. This coil sub harness is intended to be used with factory LS coils and various Holley EFI main harnesses with Coil-on-plug connectors. The Holley EFI LS coil sub harnesses are built with the same high quality connectors and wire loom found on all Holley EFI harnesses, guaranteeing a perfect match in your engine bay.","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":51711919784104,"sku":"GVMR_558-321","price":207.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/HLY558-321.jpg?v=1741293132"},{"product_id":"wiring-harness-adapter-hyperspark-ignition","title":"HyperSpark Ignition Adapter","description":"Designed to plug and play with HyperSpark distributors and Holley EFI main harnesses with ignition connector.","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":51711923126440,"sku":"GVMR_558-323","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/HLY558-323.jpg?v=1741293154"},{"product_id":"efi-pro-billet-ignition-adapter","title":"Holley EFI Pro-Billet Ignition Adapter","description":"Designed to plug and play with MSD Pro Billet distributors and Holley EFI main harnesses with an ignition connector, such as Holley part number 558-104.","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":51711925551272,"sku":"GVMR_558-325","price":42.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/HLY558-325.jpg?v=1741293174"},{"product_id":"adp-harness-sniper-efi-to-efi-dual-sync-distr","title":"Adp. Harness Sniper EFI to EFI Dual Sync Distr.","description":"Ignition Wiring Harness - Plug-N-Play - Sniper EFI to Holley EFI Dual Sync Distributor - Each","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":51712015007912,"sku":"GVMR_558-493","price":44.96,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/HLY558-493.jpg?v=1741293828"},{"product_id":"universal-mpfi-coil-on-plug-main-harness","title":"Universal MPFI Coil On Plug Main Harness","description":"This harness provides a plug and play upgrade solution for those seeking to convert to Coil-On-Plug. Additionally we have pre-installed a Power Tap for easy access to 12v, 5v Reference, and Sensor Grounds.","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":52346365182120,"sku":"GVMR_558-117","price":623.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/HLY558-117.jpg?v=1745804291"},{"product_id":"jeep-duraspark-harness","title":"DuraSpark II Ignition Harness; Fits 6 And 8 Cyl. Factory Jeep Ignition Systems;","description":"These Painless Performance Duraspark II distributor wiring harnesses are designed to convert an old Ford points-type ignition into a modern Duraspark II electronic ignition. They feature preterminated wire ends with installed Weatherpack connectors for a quick and easy fit.","brand":"Painless Wiring","offers":[{"title":"Default Title","offer_id":52358896550056,"sku":"DHDT_30819","price":104.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/PWI30819.jpg?v=1745902708"},{"product_id":"ignition-harness-ls-engines-excludes-ls1","title":"Ignition Coil Wire Extension; Fits w\/LS Ignition Coils;","description":"Painless maintains strict quality requirements for all raw material suppliers to ensure the highest quality finished product. Only American venders are approved. Quality is the key ingredient in every Painless product. Rigorous QC inspection follow all products every step of the way in production to verify the integrity of every crimp, every splice, every application of terminals and connections. When you open any Painless box, you will know without question that you have in your hands the highest quality product available anywhere.","brand":"Painless Wiring","offers":[{"title":"Default Title","offer_id":52359129956520,"sku":"DHDT_60141","price":67.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/PWI60141.jpg?v=1745904625"},{"product_id":"ignition-harness-97-04-ls1-engines","title":"Ignition Coil Wire Extension; Fits w\/LS1 Ignition Coils;","description":"Painless maintains strict quality requirements for all raw material suppliers to ensure the highest quality finished product. Only American venders are approved. Quality is the key ingredient in every Painless product. Rigorous QC inspection follow all products every step of the way in production to verify the integrity of every crimp, every splice, every application of terminals and connections. When you open any Painless box, you will know without question that you have in your hands the highest quality product available anywhere.","brand":"Painless Wiring","offers":[{"title":"Default Title","offer_id":52359132840104,"sku":"DHDT_60140","price":63.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/PWI60140.jpg?v=1745904653"},{"product_id":"ls-engine-coil-36in-extension-harness","title":"Ignition Coil Wire Extension; 36 Inch Extension Harness;","description":"Painless maintains strict quality requirements for all raw material suppliers to ensure the highest quality finished product. Only American venders are approved. Quality is the key ingredient in every Painless product. Rigorous QC inspection follow all products every step of the way in production to verify the integrity of every crimp, every splice, every application of terminals and connections. When you open any Painless box, you will know without question that you have in your hands the highest quality product available anywhere.","brand":"Painless Wiring","offers":[{"title":"Default Title","offer_id":52359182024872,"sku":"DHDT_60128","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/PWI60128.jpg?v=1745905067"},{"product_id":"external-coil-cable-tach-to-coil","title":"Coil Power\/Tachometer Wire Harness","description":"These connector cables from Painless Performance are designed for use with TBI and TPI coils. Connector cables are available to connect the external coil to the distributor, and to connect the power and tachometer to the coil.","brand":"Painless Wiring","offers":[{"title":"Default Title","offer_id":52359183794344,"sku":"DHDT_60125","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/PWI60125.jpg?v=1745905088"},{"product_id":"wire-harness","title":"Mallory Wire Harness","description":"3-wire for ignition box.","brand":"Mallory","offers":[{"title":"Default Title","offer_id":52376308678824,"sku":"BFKR_29349","price":35.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/MAL29349.jpg?v=1745996650"},{"product_id":"adapter-harness-for-140021","title":"ACCEL Adapter Harness - MOPAR - 1998-Up","description":"Allows you to directly plug into the ACCEL PN 140021 Super coil when being used on a 1998 to 2002 Dodge truck, or Jeep equipped with a distributor and the newer light grey Yazaki wire harness coil connector.  No cutting or splicing is required.","brand":"ACCEL","offers":[{"title":"Default Title","offer_id":52552627093672,"sku":"BDDP_140021AH","price":41.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/2344\/1064\/files\/ACL140021AH.jpg?v=1747263834"}],"url":"https:\/\/www.truspeedperformance.com\/collections\/ignition-wiring-harnesses.oembed","provider":"TruSpeed Performance LLC","version":"1.0","type":"link"}