{"title":"Ignition Harness","description":null,"products":[{"product_id":"dominator-efi-connector-j2b-auxiliary-harness","title":"Dominator EFI Connector J2B Auxiliary Harness","description":"Dominator EFI Connector J2B Auxiliary Harness","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44152166219891,"sku":"GVMR_558-402","price":175.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-402_01.jpg?v=1765770425"},{"product_id":"dominator-efi-connector-j2a-auxiliary-harness","title":"Dominator EFI Connector J2A Auxiliary Harness","description":"Used when adding a second wide band oxygen sensor to a Dominator EFI installation.","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44152166318195,"sku":"GVMR_558-401","price":228.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-401.jpg?v=1765770437"},{"product_id":"for-dominator-hp-terminator-x-and-terminator-x-max","title":"For Dominator, HP, Terminator X and Terminator X Max","description":"This harness connects to the (8) pin Metri-Pack Input\/Output connector located in most Holley EFI main harnesses.","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44152166383731,"sku":"GVMR_558-400","price":127.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-400_01.jpg?v=1765770449"},{"product_id":"tach-input-ignition-adapter","title":"Tach Input Ignition Adapter","description":"This is only used on applications using a CD Box, such as an MSD 6AL, while not using timing control.","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44152166449267,"sku":"GVMR_558-302","price":23.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-302.jpg?v=1765770463"},{"product_id":"99-04-2-valve-ford-modular-coil-harness-for-hp-efi-dominator-efi","title":"99-04 2 Valve Ford Modular Coil Harness, For HP EFI \u0026 Dominator EFI","description":"99-04 2 Valve Ford Modular Coil Harness, For HP EFI \u0026amp; Dominator EFI","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44152166514803,"sku":"GVMR_558-314","price":231.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-314_01.jpg?v=1765770475"},{"product_id":"firmware-updating-dash-configuration-ecu-testing","title":"Firmware Updating - Dash Configuration - ECU Testing","description":"Also includes a power switch for quick setup in your workspace. Power and Ground flying leads need to be connected to your battery or power supply. (Not included)","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44152260722803,"sku":"GVMR_558-127","price":231.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-127_01.jpg?v=1765773443"},{"product_id":"replacement-harness-for-hyperspark-and-hyperspark-2-ignition-boxes","title":"Replacement harness for HyperSpark and HyperSpark 2 Ignition Boxes","description":"This harness includes switched 12V, battery+, battery-, ignition coil wire, and output wires for points or electronic ignition amplifier. Harness is wrapped in protective split wire loom for increased protection and cleaner installation.","brand":"Holley Sniper EFI","offers":[{"title":"Default Title","offer_id":44315340669043,"sku":"FRCQ_556-156","price":34.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/7fbf065498d851620a923108834f1f65a920655f.png?v=1771366854"},{"product_id":"hyperspark-plug-and-play-main-harness","title":"HyperSpark Plug and Play Main Harness","description":"With our HyperSpark plug and play main harness, you replace the Sniper 1 main harness and use the new harness to connect your HyperSpark components. Designed to be used when connecting HyperSpark distributor, HyperSpark coil, HyperSpark ignition, I\/O connector, and your Sniper throttle body, this harness reduces any wiring confusion and installation time.","brand":"Holley Sniper EFI","offers":[{"title":"Default Title","offer_id":44315341160563,"sku":"FRCQ_558-328","price":320.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/565-300k_09.jpg?v=1771366878"},{"product_id":"crank-cam-ign-harness-fully-terminated-harness","title":"Crank\/Cam Ign. Harness. Fully terminated harness.","description":"Crank\/Cam Ign. Harness for Ferrous Crank\/Magnetic Cam Hall Effect Sensors. Fully terminated harness.","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44315385790579,"sku":"GVMR_558-431","price":99.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-431_01.jpg?v=1771368067"},{"product_id":"hei-ignition-harness-for-avenger-efi-hp-efi-dominator-efi","title":"HEI Ignition Harness for Avenger EFI, HP EFI \u0026 Dominator EFI","description":"HEI Ignition Harness for Avenger EFI, HP EFI \u0026amp; Dominator EFI","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44315386642547,"sku":"GVMR_558-304","price":59.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-304_01.jpg?v=1771368075"},{"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":44315387625587,"sku":"GVMR_558-118","price":649.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-118.jpg?v=1771368084"},{"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":44315388674163,"sku":"GVMR_558-117","price":599.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-117_02_P01_KIT.jpg?v=1771368093"},{"product_id":"ford-modular-2v-and-4v-main-harness-for-use-with-holley-smart-coils","title":"Ford Modular 2V and 4V Main Harness for use with Holley Smart Coils","description":"Main Harness for 1999-2004 2 \u0026amp; 4 Valve Ford Modular (4.6 \u0026amp; 5.4L) Engines for use with Holley Smart Coils","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44315389427827,"sku":"GVMR_558-113","price":899.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-113.jpg?v=1771368100"},{"product_id":"dominator-efi-connector-j4-auxiliary-harness","title":"Dominator EFI Connector J4 Auxiliary Harness","description":"Dominator EFI Connector J4 Auxiliary Harness","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44315390509171,"sku":"GVMR_558-404","price":224.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-404_01.jpg?v=1771368110"},{"product_id":"gen-iii-hemi-coil-harness-early-coils-for-hp-efi-dominator-efi","title":"Gen III HEMI Coil Harness, Early Coils, for HP EFI \u0026 Dominator EFI","description":"Chrysler has used two different coils on the HEMI engine series with 2006 being the year that the change was phased throughout the truck and car line. Fortunately the two coils are very different visually and makes for a simple review. If the coil requires spark plug wires, it is the early coil. If the coil does not require plug wires and simply has two boots that connect to the plugs in the cylinder head, it is the later coil. View the image gallery for images of both types.","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44315391328371,"sku":"GVMR_558-310","price":187.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-310.jpg?v=1771368117"},{"product_id":"main-power-harness-for-avenger-efi-hp-efi-dominator-efi","title":"Main Power Harness for Avenger EFI, HP EFI, \u0026 Dominator EFI","description":"This Harness is required with HP or Dominator ECUs.  Includes, 13' long, 10 AWG main power harness, Qty. (2) 3\/8\" ring terminals and shrink tube (not pictured) .  The harness is fuse protected and covered in braided split loom for additional abrasion protection .","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44315392114803,"sku":"GVMR_558-308","price":104.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/c3aec626f2aab087e8e24bfc1ffbd03e9ee9fe29.jpg?v=1771368125"},{"product_id":"for-use-with-holley®-hp-and-dominator-ecus-and-other-efi-systems","title":"For use with Holley® HP and Dominator ECUs and other EFI systems","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":44315392409715,"sku":"GVMR_558-307","price":187.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-307_01_P04_KIT.jpg?v=1771368133"},{"product_id":"universal-unterminated-ignition-harness-for-hp-efi-dominator-efi","title":"Universal Unterminated Ignition Harness for HP EFI \u0026 Dominator EFI","description":"Universal Unterminated Ignition Harness for HP EFI \u0026amp; Dominator EFI","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44315392475251,"sku":"GVMR_558-306","price":187.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-306_05_20_1.jpg?v=1771368142"},{"product_id":"ford-tfi-ignition-harness-for-avenger-efi-hp-efi-dominator-efi","title":"Ford TFI Ignition Harness for Avenger EFI, HP EFI \u0026 Dominator EFI","description":"Ford TFI Ignition Harness for Avenger EFI, HP EFI \u0026amp; Dominator EFI","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44315392573555,"sku":"GVMR_558-305","price":125.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-305_01.jpg?v=1771368150"},{"product_id":"2011-to-2015-ford-coyote-coil-harness-for-hp-efi-dominator-efi","title":"2011 to 2015 Ford Coyote Coil Harness, For HP EFI \u0026 Dominator EFI","description":"2011 to 2015 Ford Coyote Coil Harness, For HP EFI \u0026amp; Dominator EFI","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44315392639091,"sku":"GVMR_558-317","price":219.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-317.jpg?v=1771368157"},{"product_id":"99-04-4-valve-ford-modular-coil-harness-for-hp-efi-and-dominator-efi","title":"99-04 4 Valve Ford Modular Coil Harness, For HP EFI and Dominator EFI","description":"99-04 4 Valve Ford Modular Coil Harness, For HP EFI and Dominator EFI","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44315392934003,"sku":"GVMR_558-315","price":206.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-315.png?v=1771368167"},{"product_id":"hemi-dbw-harness-2013-applications-dominator-efi-only","title":"Hemi DBW Harness 2013+ Applications (Dominator EFI Only)","description":"The Holley Dominator ECU has built in capability to control the Drive-By-Wire throttle pedals and throttle bodies used on most Chrysler HEMI applications.","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44315395620979,"sku":"GVMR_558-437","price":117.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-437_01.jpg?v=1771368264"},{"product_id":"big-wire-c-n-p-ignition-sub-harness","title":"“Big Wire” 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":44315395686515,"sku":"GVMR_558-318","price":286.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-318.jpg?v=1771368271"},{"product_id":"for-use-with-holley®-hp-and-dominator-ecus-and-other-efi-systems-1","title":"For use with Holley® HP and Dominator ECUs and other EFI systems","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":44315396997235,"sku":"GVMR_558-312","price":279.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/large558-312_a7c092de-2939-47dd-a45d-b823b0a35cd8.jpg?v=1771368385"},{"product_id":"gen-iii-hemi-coil-harness-late-coils-for-hp-efi-dominator-efi","title":"Gen III HEMI Coil Harness, Late Coils, for HP EFI \u0026 Dominator EFI","description":"Chrysler has used two different coils on the HEMI engine series with 2006 being the year that the change was phased throughout the truck and car line. Fortunately the two coils are very different visually and makes for a simple review. If the coil requires spark plug wires, it is the early coil. If the coil does not require plug wires and simply has two boots that connect to the plugs in the cylinder head, it is the later coil. View the image gallery for images of both types.","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44315397062771,"sku":"GVMR_558-311","price":199.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-311.jpg?v=1771368392"},{"product_id":"hyperspark-ignition-adapter","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":44315397587059,"sku":"GVMR_558-323","price":46.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/558-323_0119269.jpg?v=1771368408"},{"product_id":"for-pro-billet-distributor-or-magnetic-crank-trigger-to-sniper-2","title":"For Pro-Billet Distributor or Magnetic Crank Trigger to Sniper 2","description":"Provide RPM signal to the ECU for your Sniper 2 while not using timing control. With two wires, it's quick and easy to install in your vehicle.","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":44315472167027,"sku":"GVMR_558-330","price":39.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/1969\/6499\/files\/1c834fcb8cfe578d8a85f99b2f81ad446b922316.jpg?v=1771369459"}],"url":"https:\/\/oneshotpowersports.com\/collections\/ignition-harness.oembed","provider":"One Shot Powersports","version":"1.0","type":"link"}