Special Offers

Drive-By-Wire harness for 2011-2017 Ford Coyote (5.0L) enginesFeatures:Designed to be used with Ford Throttle Body P/N's - BR3Z-9E926-C, BR3E-9F991-AB, and FR3E-9F991-AADesigned to be used with Ford Throttle Pedal P/N - BR3Z-9F836-D and BR3Z-9F836-C BrandHolley EFIEmission Code4Harness ApplicationFordHarness TypeDrive-By-WireProduct TypeDrive By Wire HarnessPart Number558-422..

Can Extension Harness (for Racepak and other external CAN drives)BrandHolley EFIEmission Code5Product TypeCAN Extension HarnessPart Number558-424..

Can Extension Harness (for Racepak and other external CAN drives)BrandHolley EFIEmission Code5Product TypeCAN Extension HarnessPart Number558-425..

CAN Extension Harness (for Racepak and other external CAN drives)BrandHolley EFIEmission Code5Product TypeCAN Extension HarnessPart Number558-426..

Can Extension Harness (for Racepak and other external CAN drives)BrandHolley EFIEmission Code5Product TypeCAN Extension HarnessPart Number558-428..

The Holley EFI Can Adapter/Power Harness adapts two pin Holley main harness CAN connectors to new style 4 pin CAN devices.BrandHolley EFIEmission Code5Product TypeCAN Extension HarnessPart Number558-430..

Replacement I/O Adapter for Digital Dash BrandHolley EFIEmission Code5Product TypeDigital Dash Harness / Adapter / ModulePart Number558-432..

I/O Adapter w/Unterminated Vehicle HarnessFeatures:Provides ten addiitonal inputs/outputs to the 7" digital dashBrings out connections to a waterproof 26 pin connector similiar to ones used on EFI unitsItem includes USB memory stick to update digital dash firmware that supports adapterBrandHolley EFIEmission Code5Product TypeDigital Dash Harness / Adapter / ModulePart Number558-433..

I/O Adapter w/Terminated Vehicle HarnessFeatures:Provides ten addiitonal inputs/outputs to the 7" digital dashBrings out connections to a waterproof 26 pin connector similiar to ones used on EFI unitsHarness includes USB memory stick to update digital dash firmware that supports adapterBrandHolley EFIEmission Code5Product TypeDigital Dash Harness / Adapter / ModulePart Number558-434..

Unterminated Vehicle Harness For Digital DashBrandHolley EFIEmission Code5Product TypeDigital Dash Harness / Adapter / ModulePart Number558-435..

Terminated Vehicle Harness For Digital DashBrandHolley EFIEmission Code5Product TypeDigital Dash Harness / Adapter / ModulePart Number558-436..

15' long sealed USB data cable BrandHolley EFIEmission Code5Harness TypeAuxiliaryLength15ftProduct TypeUSB Data - Communication CablePart Number558-438..

Injector upgrade harness for Terminator Throttle Body Systems. This harness is designed to be plug and play with our 205 lb/hr injector upgrade kit, Part Number 522-205. BrandHolley EFIEmission Code4Product TypeTerminator Throttle Body HarnessPart Number558-439..

This Universal 4 Cylinder EV14 Injector Harness is designed to be plug and play with HP EFI & Dominator EFI Systems, utilizing our 205 LB/HR Injector Set - Part Number 522-205.BrandHolley EFIEmission Code4Harness ApplicationUniversalHarness TypeInjectorInjector ConnectorBosch/EV14Product TypeInjector Harness - ConnectorPart Number558-440..

Introducing 2x4 Terminator Stealth EFI upgrade components. The wait is over. These upgrade components allow you to use your current Terminator Stealth EFI throttle body, install a new main harness, and slave throttle body, and you are finished. This upgrade is also perfect for anyone wanting to convert their 2x4 supercharged combo over to Electronic Fuel Injection!Features:2x4 Side Mount Stealth T..

The CAN to USB communication cable provides the user with real tuning time access to the ECU. This cable can be used with Holley EFI, Sniper EFI, and Terminator X Tuning Software. Which can be downloaded for free from the Support section of our website!Features:8’ communication cable for easy access to your ECU.BrandHolley EFIEmission Code5Length8ftProduct TypeUSB Data - Communication CablePart Nu..

Service replacement digital dash harness. Features:CANBus Connector WiringUSB Connector WiringBrandHolley EFIEmission Code5Product TypeHarness KitPart Number558-444..

The Holley EFI Can Adapter/Power Harness adapts two pin Holley main harness CAN connectors to new style 4 pin CAN devices.BrandHolley EFIEmission Code5Product TypeCAN Extension HarnessPart Number558-445..

If you already have your own wire and simply need the connectors and pins, we have you covered with our new ECU connector and pins kit, allowing you to fully terminate your own custom main harnesses!Features:Pre-Terminated J1A and J1B Tyco Superseal Connectors60x - 20-22ga pre-terminated wires20x - 16-18ga pre-terminated wires30 cavity plugsBrandHolley EFIEmission Code5Product TypeConnector KitPa..

Ford 4R70W/4R75W Transmission Harness - Complete terminated harness with j4 connector to operate 1998+ Ford electronic transmissions, for Dominator EFI ONLY!Features:Plug and play fully terminated harnessExtra pressure transducer connector for optional Line pressure sensor (554-136)BrandHolley EFIEmission Code5Harness ApplicationFordHarness TypeTransmissionProduct TypeHarness KitPart Number558-470..