Holley EFI Holley EFI 558-448 - J1A / J1B ECU Connector Kit MSRP: $116.95 Was: Now: $110.99 Add to Cart
Holley EFI Holley EFI 558-443 - Sniper EFI CAN To USB Communication Cable MSRP: $96.79 Was: Now: $87.99 Add to Cart
Holley EFI Holley EFI 558-436 - Terminated Vehicle Harness For Digital Dash MSRP: $233.95 Was: Now: $207.95 Add to Cart
Holley EFI Holley EFI 558-439 - Terminator® Throttle Body Harness MSRP: $258.95 Was: Now: $229.95 Add to Cart
Holley EFI Holley EFI 558-440 - Universal MPFI Main Harness MSRP: $137.49 Was: Now: $124.99 Add to Cart
Holley EFI Holley EFI 558-433 - Digital Dash I/O Adapter w/Unterminated Vehicle Harness MSRP: $354.95 Was: Now: $300.99 Add to Cart
Holley EFI Holley EFI 558-429 - Dominator EFI GM Drive By Wire Harness MSRP: $278.95 Was: Now: $231.99 Add to Cart
Holley EFI Holley EFI 558-434 - Digital Dash I/O Adapter w/Terminated Vehicle Harness MSRP: $409.95 Was: Now: $343.99 Add to Cart
Holley EFI Holley EFI 558-428 - Fuel Injection Wire Harness MSRP: $72.59 Was: Now: $65.99 Add to Cart
Holley EFI Holley EFI 558-430 - Fuel Injection Wire Harness MSRP: $62.69 Was: Now: $56.99 Add to Cart
Holley EFI Holley EFI 558-426 - Fuel Injection Wire Harness MSRP: $95.69 Was: Now: $86.99 Add to Cart
Holley EFI Holley EFI 558-424 - Fuel Injection Wire Harness MSRP: $78.09 Was: Now: $70.99 Add to Cart
Holley EFI Holley EFI 558-425 - Fuel Injection Wire Harness MSRP: $83.59 Was: Now: $75.99 Add to Cart
Holley EFI Holley EFI 558-417 - HEMI Drive By Wire Harness MSRP: $277.95 Was: Now: $246.95 Add to Cart
Holley EFI Holley EFI 558-450 - Drive-By-Wire Harness Holley EFI - 558-450Chrysler HEMI Drive-By-Wire Dual Throttle Body HarnessDrive-By-Wire Harness; For Use w/Chrysler Hemi Dual Throttle Bodies;The Holley Dominator ECU has built in capability to... MSRP: $381.95 Was: Now: $320.99 Add to Cart
Holley EFI Holley EFI 558-448 - J1A / J1B ECU Connector Kit Holley EFI - 558-448J1A / J1B ECU Connector Kit; J1A/J1B ECU Connector Kit w/Pins and Seals;If you already have your own wire and simply need the connectors and pins, we have you covered with our new... MSRP: $116.95 Was: Now: $110.99 Add to Cart
Holley EFI Holley EFI 558-443 - Sniper EFI CAN To USB Communication Cable Holley EFI - 558-443Holley EFI CAN to USB Dongle Communication CableSniper EFI CAN To USB Communication Cable; 8 ft. Communication Cable;The CAN to USB communication cable provides the user with real... MSRP: $96.79 Was: Now: $87.99 Add to Cart
Holley EFI Holley EFI 558-446 - Pro Dash Service Harness Holley EFI - 558-446Pro Dash Service HarnessReplacement Harness for Holley EFI Pro Dashes - 553-111 and 553-112Pro Dash Service HarnessBrand: Holley EFIEmission Code: 5Product Type: Digital Dash... MSRP: $155.95 Was: Now: $138.99 Add to Cart
Holley EFI Holley EFI 558-438 - Sealed USB Data Cable Holley EFI - 558-438Sealed USB Data CableHolley EFI Sealed USB Cable 15'15' long sealed USB data cableWiring Harness For Digital DashBrand: Holley EFIEmission Code: 5Harness Type: AuxiliaryLength:... MSRP: $137.95 Was: Now: $131.99 Add to Cart
Holley EFI Holley EFI 558-437 - Drive By Wire Harness Holley EFI - 558-437Hemi Drive-By-Wire Throttle Body HarnessDrive By Wire Harness; Fits 2013-Present Holley Dominator EFI Only Apps; Hemi Throttle Body Harness;The Holley Dominator ECU has built in... MSRP: $121.95 Was: Now: $119.99 Add to Cart
Holley EFI Holley EFI 558-436 - Terminated Vehicle Harness For Digital Dash Holley EFI - 558-436Terminated Vehicle Harness For Digital DashCompatible With Digital DisplayFor Use w/Holley Distributorless Ignition SystemsBrand: Holley EFIClearance Category: InteriorDiscount... MSRP: $233.95 Was: Now: $207.95 Add to Cart
Holley EFI Holley EFI 558-439 - Terminator® Throttle Body Harness Holley EFI - 558-439Terminator® Throttle Body Harness; For Use w/PN[522-205];Injector upgrade harness for Terminator Throttle Body Systems. This harness is designed to be plug and play with our 205... MSRP: $258.95 Was: Now: $229.95 Add to Cart
Holley EFI Holley EFI 558-440 - Universal MPFI Main Harness Holley EFI - 558-440Universal 4 EV14 Cylinder Injector HarnessUniversal MPFI Main Harness; Fits w/4 cyl. EV14 Injector HP/Dominator EFI; 205 lb./hr.;This Universal 4 Cylinder EV14 Injector Harness is... MSRP: $137.49 Was: Now: $124.99 Add to Cart
Holley EFI Holley EFI 558-433 - Digital Dash I/O Adapter w/Unterminated Vehicle Harness Holley EFI - 558-433Digital Dash I/O Adapter w/Unterminated Vehicle Harness; Provides 10 More Inputs/Outputs To Digital Dash; Incl. USB Memory Stick/Firmware;I/O Adapter w/Unterminated Vehicle... MSRP: $354.95 Was: Now: $300.99 Add to Cart
Holley EFI Holley EFI 558-429 - Dominator EFI GM Drive By Wire Harness Holley EFI - 558-429Dominator EFI GM Drive-By-Wire Harness - Early TruckDominator EFI GM Drive By Wire Harness; Early GM Truck;Dominator EFI GM DBW Harness-Early Truck. Compatible with GM part number... MSRP: $278.95 Was: Now: $231.99 Add to Cart
Holley EFI Holley EFI 558-434 - Digital Dash I/O Adapter w/Terminated Vehicle Harness Holley EFI - 558-434Digital Dash I/O Adapter w/Terminated Vehicle Harness; Provides 10 More Inputs/Outputs To Digital Dash; Incl. USB Memory Stick/Firmware;I/O Adapter w/Terminated Vehicle... MSRP: $409.95 Was: Now: $343.99 Add to Cart
Holley EFI Holley EFI 558-428 - Fuel Injection Wire Harness Holley EFI - 558-428Fuel Injection Wire Harness; CAN Extension Harness; 9 in.;Can Extension Harness (for Racepak and other external CAN drives)Fuel Injection Wire HarnessBrand: Holley EFIEmission... MSRP: $72.59 Was: Now: $65.99 Add to Cart
Holley EFI Holley EFI 558-430 - Fuel Injection Wire Harness Holley EFI - 558-430Fuel Injection Wire Harness; CAN Adapter/Power Harness; Adapts 2 Pin Holley Main Harness CAN Connectors To New Style 4 Pin CAN Devices;The Holley EFI Can Adapter/Power Harness... MSRP: $62.69 Was: Now: $56.99 Add to Cart
Holley EFI Holley EFI 558-432 - Digital Dash I/O Adapter Holley EFI - 558-432Replacement I/O Adapter for Digital DashProvides 10 Additional Inputs And OutputsBrings Connections To 26 Pin ConnectorBrand: Holley EFIEmission Code: 5Product Type: Digital Dash... MSRP: $164.95 Was: Now: $152.99 Add to Cart
Holley EFI Holley EFI 558-426 - Fuel Injection Wire Harness Holley EFI - 558-426Fuel Injection Wire Harness; CAN Extension Harness; 12 ft.;Can Extension Harness (for Racepak and other external CAN drives)Fuel Injection Wire HarnessBrand: Holley EFIEmission... MSRP: $95.69 Was: Now: $86.99 Add to Cart
Holley EFI Holley EFI 558-424 - Fuel Injection Wire Harness Holley EFI - 558-424Fuel Injection Wire Harness; CAN Extension Harness; 4 ft.;Can Extension Harness (for Racepak and other external CAN drives)Fuel Injection Wire HarnessBrand: Holley EFIEmission... MSRP: $78.09 Was: Now: $70.99 Add to Cart
Holley EFI Holley EFI 558-425 - Fuel Injection Wire Harness Holley EFI - 558-425Fuel Injection Wire Harness; CAN Extension Harness; 8 ft.;Can Extension Harness (for Racepak and other external CAN drives)Fuel Injection Wire HarnessBrand: Holley EFIEmission... MSRP: $83.59 Was: Now: $75.99 Add to Cart
Holley EFI Holley EFI 558-417 - HEMI Drive By Wire Harness Holley EFI - 558-417Gen III HEMI Drive-By-Wire Harness - Early PedalHEMI Drive By Wire Harness; Fits w/Gen III Hemi Early Pedal;Similar to the changes with the cam and crank sensors, the... MSRP: $277.95 Was: Now: $246.95 Add to Cart
