Holley EFI Holley EFI 558-420 - Terminator® EFI Wiring Harness MSRP: $72.59 Was: Now: $65.99 Add to Cart
Holley EFI Holley EFI 558-455 - Transmission Control Harness MSRP: $290.95 Was: Now: $241.99 Add to Cart
Holley EFI Holley EFI 561-102 - Spark Plug Wire Set; Fits w/Shorty Headers; 45 Degree; Red; MSRP: $155.95 Was: Now: $138.99 Add to Cart
Holley EFI Holley EFI 558-459 - Terminator® Stealth Series Harness MSRP: $239.95 Was: Now: $212.95 Add to Cart
Holley EFI Holley EFI 561-100 - Spark Plug Wire Set; Fits w/Shorty Headers; 45 Degree; Black; MSRP: $164.95 Was: Now: $147.99 Add to Cart
Holley EFI Holley EFI 558-513 - EFI HARNESS KIT, FORD FOXBODY 5.0L V8 W/TFI MSRP: $989.95 Was: Now: $879.95 Add to Cart
Holley EFI Holley EFI 558-501 - Fuel Injection Wire Harness MSRP: $925.95 Was: Now: $744.99 Add to Cart
Holley EFI Holley EFI 558-502 - Fuel Injection Wire Harness MSRP: $969.95 Was: Now: $778.99 Add to Cart
Holley EFI Holley EFI 558-508 - Universal Ford V-8 Harness Kit MSRP: $885.95 Was: Now: $713.99 Add to Cart
Holley EFI Holley EFI 558-503 - Fuel Injection Wire Harness MSRP: $898.95 Was: Now: $798.95 Add to Cart
Holley EFI Holley EFI 558-505 - Ford Modular 2 Valve EFI Harness Kit MSRP: $1,565.95 Was: Now: $1,391.95 Add to Cart
Holley EFI Holley EFI 558-500 - Fuel Injection Wire Harness MSRP: $1,021.95 Was: Now: $819.99 Add to Cart
Holley EFI Holley EFI 558-471 - Transmission Control Harness MSRP: $302.95 Was: Now: $250.99 Add to Cart
Holley EFI Holley EFI 558-504 - Universal Multi-Point Main Harness MSRP: $898.95 Was: Now: $723.99 Add to Cart
Holley EFI Holley EFI 558-470 - Automatic Transmission Wire Harness MSRP: $278.95 Was: Now: $241.99 Add to Cart
Holley EFI Holley EFI 558-461 - Drive-By-Wire Throttle Body Harness MSRP: $490.95 Was: Now: $435.95 Add to Cart
Holley EFI Holley EFI 558-414 - Terminator® EFI Wiring Harness MSRP: $518.95 Was: Now: $428.99 Add to Cart
Holley EFI Holley EFI 558-420 - Terminator® EFI Wiring Harness Holley EFI - 558-420Terminator EFI Input/Output KitTerminator® EFI Wiring Harness; Incl. 4 Extra Input Wires And 1 Extra Output Wire; Must Be Programmed Via Holley EFI Software;PN 558-420 contains 5... MSRP: $72.59 Was: Now: $65.99 Add to Cart
Holley EFI Holley EFI 558-455 - Transmission Control Harness Holley EFI - 558-4552009+ GM 4L60E Transmission Control HarnessTransmission Control Harness;Expanding on our Transmission Control options from Holley EFI. This new harness 558-455 from Holley EFI... MSRP: $290.95 Was: Now: $241.99 Add to Cart
Holley EFI Holley EFI 561-102 - Spark Plug Wire Set; Fits w/Shorty Headers; 45 Degree; Red; Holley EFI - 561-102Spark Plug Wire SetSpark Plug Wire set, Red with Grey 45 degree boots designed for 2010-15 Camaro SS with a 6.2L V8 and shorty headersHolley EFI LS wires are designed to work with... MSRP: $155.95 Was: Now: $138.99 Add to Cart
Holley EFI Holley EFI 558-459 - Terminator® Stealth Series Harness Holley EFI - 558-459Terminator Stealth 2x4 Primary Throttle Body Sub HarnessTerminator® Stealth Series Harness; 2x4;Service Primary Throttle Body Sub Harness for Terminator Stealth 4150Terminator... MSRP: $239.95 Was: Now: $212.95 Add to Cart
Holley EFI Holley EFI 561-100 - Spark Plug Wire Set; Fits w/Shorty Headers; 45 Degree; Black; Holley EFI - 561-100Spark Plug Wire SetSpark Plug Wire set, Black with Black 45 degree boots designed for 2010-15 Camaro SS with a 6.2L V8 and shorty headersHolley EFI LS wires are designed to work... MSRP: $164.95 Was: Now: $147.99 Add to Cart
Holley EFI Holley EFI 558-453 - CAN Adapter Harness, 8' Holley EFI - 558-453CAN Adapter Harness; 8 in.; Male to Female;8' Male to Female CAN Adapter Harness (for Racepak and other external CAN devices)Slim-Style Mounting Requires Very Little Dash Space... MSRP: $81.39 Was: Now: $73.99 Add to Cart
Holley EFI Holley EFI 558-513 - EFI HARNESS KIT, FORD FOXBODY 5.0L V8 W/TFI Holley EFI - 558-513HARNESS KIT, FORD FOXBODY 5.0L V8 W/TFIEmission Code Description: Legal for Racing Use OnlyEmission Code: 4 MSRP: $989.95 Was: Now: $879.95 Add to Cart
Holley EFI Holley EFI 558-501 - Fuel Injection Wire Harness Holley EFI - 558-501Fuel Injection Wire Harness; For Use w/HP Or Dominator; Incl. Main Harness/LS2 Harness/LSX Injector Harness; For Use w/LS2/LS3/LS7 w/58 Tooth Crank Sensor; USCAR/EV6 Injector;An... MSRP: $925.95 Was: Now: $744.99 Add to Cart
Holley EFI Holley EFI 558-506 - Ford Modular 4 Valve EFI Harness Kit Holley EFI - 558-506Ford Modular 4 Valve EFI Harness KitInjector Harness; For Use w/Ford 4V Modular V8 Engines; Incl. Main Power Harness/Injector Harness/Coil Harness Drivers;This wiring harness...
Holley EFI Holley EFI 558-502 - Fuel Injection Wire Harness Holley EFI - 558-502Fuel Injection Wire Harness; For Use w/HP Or Dominator; Incl. Main Harness/LS2 Harness/LSX Injector Harness; For Use w/LS2/LS3/LS7 w/58 Tooth Crank Sensor; Bosch Injector;An EFI... MSRP: $969.95 Was: Now: $778.99 Add to Cart
Holley EFI Holley EFI 558-508 - Universal Ford V-8 Harness Kit Holley EFI - 558-508Universal Ford V-8 Harness KitInjector Harness; Fits w/Dominator Or HP ECU; Bosch Injector; Incl. Main Power Harness/Universal Main Harness For Ford V8/Ignition Adapter And Tach... MSRP: $885.95 Was: Now: $713.99 Add to Cart
Holley EFI Holley EFI 558-503 - Fuel Injection Wire Harness Holley EFI - 558-503GM TPI and Stealth Ram EFI HARNESS KITFuel Injection Wire Harness; For Use w/HP Or Dominator; Incl. Main Power Harness/Stealth Ram/TPI Main Harness/V8 Injector Harness/HEI... MSRP: $898.95 Was: Now: $798.95 Add to Cart
Holley EFI Holley EFI 558-505 - Ford Modular 2 Valve EFI Harness Kit Holley EFI - 558-505Ford Modular 2 Valve EFI Harness KitInjector Harness; For Use w/1999-2004 Ford Modular 2V Engines; Incl. Main Power Harness/Injector Harness/Harness Coil Drivers;This wiring... MSRP: $1,565.95 Was: Now: $1,391.95 Add to Cart
Holley EFI Holley EFI 558-500 - Fuel Injection Wire Harness Holley EFI - 558-500Fuel Injection Wire Harness; For Use w/HP Or Dominator ECU; Works w/LS1/LS6 And 24 Tooth Crank Sensor;An EFI system depends heavily on being supplied a clean and constant voltage... MSRP: $1,021.95 Was: Now: $819.99 Add to Cart
Holley EFI Holley EFI 558-471 - Transmission Control Harness Holley EFI - 558-4711992-1997 Ford AODE/4R70W Transmission Control HarnessPlug and play Transmission Harness for 1992-1997 Ford AODE/4R70WFord AODE/4R70W Transmission HarnessPlug and Play Fully... MSRP: $302.95 Was: Now: $250.99 Add to Cart
Holley EFI Holley EFI 558-504 - Universal Multi-Point Main Harness Holley EFI - 558-504Universal Multi-Point Main Harness; Incl. Main Power Harness/Universal Main MPFI Harness For V8/Power Harness/Injector Harness; Works w/Dominator Or HP ECU;An EFI system depends... MSRP: $898.95 Was: Now: $723.99 Add to Cart
Holley EFI Holley EFI 558-470 - Automatic Transmission Wire Harness Holley EFI - 558-470Ford 4R70W/4R75W Transmission Control HarnessAutomatic Transmission Wire Harness; Plug And Play Fully Terminated Harness;Ford 4R70W/4R75W Transmission Harness - Complete... MSRP: $278.95 Was: Now: $241.99 Add to Cart
Holley EFI Holley EFI 558-466 - MAP Sensor Connector Holley EFI - 558-466Weatherpak to GT (Stainless Steel) MAP Adapter HarnessMAP Sensor Connector; MPFI Weatherpack 3-Pin To 3-Pin Delphi GT Connector; MPFI To SS;These two new MAP sensor adapters from... MSRP: $64.89 Was: Now: $58.99 Add to Cart
Holley EFI Holley EFI 558-461 - Drive-By-Wire Throttle Body Harness Holley EFI - 558-461Holley EFI Ford GT500 and 3V Drive-by-Wire Throttle Body Harness2005-2010 Ford Mustang GT and GT500 ModelsIntroducing a new Holley EFI DBW Throttle Body wiring harness for the OEM... MSRP: $490.95 Was: Now: $435.95 Add to Cart
Holley EFI Holley EFI 558-414 - Terminator® EFI Wiring Harness Holley EFI - 558-414Terminator® EFI Wiring Harness; Replacement Harness For Use w/PN[550-405/550-406];Replacement main wiring harness for Terminator EFI kits 550-405 and 550-406.Replacement... MSRP: $518.95 Was: Now: $428.99 Add to Cart
Holley EFI Holley EFI 558-467 - MAP Sensor Connector Holley EFI - 558-467Delphi M/P 150 to GT (Stainless Steel) MAP Adapter HarnessMAP Sensor Connector; Delphi M/P 150 3-Pin To 3-Pin Delphi GT Connector; LS To SS;These two new MAP sensor adapters from... MSRP: $59.39 Was: Now: $53.99 Add to Cart
