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  • 558-453_01.jpg
    Holley EFI
    CAN Adapter Harness; 8 in.; Male to Female;
    $52.42
    $52.42
    $52.42
    8 Male to Female CAN Adapter Harness (for Racepak and other external CAN devices)
  • 558-451_01.jpg
    Holley EFI
    CAN Adapter Harness; 12 in.; Male to Female;
    $32.73
    $32.73
    $32.73
    12 in. Male to Female CAN Adapter Harness (for Racepak and other external CAN devices)
  • 558-447_01.jpg
    Holley EFI
    Racepak CAN Adapter Kit
    $82.60
    $91.78
    $82.60
    This kit is used to directly connect Racepak part number 230-VM-EFIHOL Vnet/Holley to either the J1A (HP and Dominator ECUs) or J3 (Dominator ECU only) connectors. There are three harnesses supplie...
  • 558-445_0118313.jpg
    Holley EFI
    Fuel Injection Wire Harness
    $44.39
    $44.39
    $44.39
    Fuel Injection Wire Harness; CAN Adapter/Power Harness; Adapts 2 Pin Holley Main Harness CAN Connectors To New Style 2 Pin Female CAN Devices;
  • 558-440.jpg
    Holley EFI
    Universal MPFI Main Harness
    $102.00
    $102.00
    $102.00
    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.
  • 558-439x.jpg
    Holley EFI
    Terminator® Throttle Body Harness; For Use w/PN[522-205];
    $217.00
    $217.00
    $217.00
    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.
  • 558-430.jpg
    Holley EFI
    Fuel Injection Wire Harness
    $27.68
    $30.76
    $27.68
    Fuel Injection Wire Harness; CAN Adapter/Power Harness; Adapts 2 Pin Holley Main Harness CAN Connectors To New Style 4 Pin CAN Devices;
  • 558-429.jpg
    Holley EFI
    Dominator EFI GM Drive By Wire Harness; Early GM Truck;
    $205.95
    $229.00
    $205.95
    Dominator EFI GM DBW Harness-Early Truck. Compatible with GM part number 10379038.
  • 558-428.jpg
    Holley EFI
    Fuel Injection Wire Harness; CAN Extension Harness; 9 in.;
    $37.83
    $42.03
    $37.83
    Can Extension Harness (for Racepak and other external CAN drives)
  • 558-426.jpg
    Holley EFI
    Fuel Injection Wire Harness; CAN Extension Harness; 12 ft.;
    $55.46
    $61.62
    $55.46
    Can Extension Harness (for Racepak and other external CAN drives)
  • 558-425.jpg
    Holley EFI
    Fuel Injection Wire Harness; CAN Extension Harness; 8 ft.;
    $48.51
    $53.90
    $48.51
    Can Extension Harness (for Racepak and other external CAN drives)
  • 558-424.jpg
    Holley EFI
    Fuel Injection Wire Harness; CAN Extension Harness; 4 ft.;
    $46.19
    $46.19
    $46.19
    Can Extension Harness (for Racepak and other external CAN drives)
  • 558-422.jpg
    Holley EFI
    Injector Harness; Ford Coyote Drive By Wire Harness;
    $237.00
    $237.00
    $237.00
    Drive-By-Wire harness for 2011-2017 Ford Coyote (5.0L) engines
  • 558-416.jpg
    Holley EFI
    Fuel Injection Wiring Harness Adapter
    $34.10
    $37.89
    $34.10
    Holley EFI LS main harnesses have a MAP sensor connecter designed for use with an LS1/2 style MAP sensor. The 558-416 is an adapter harness that can be used to adapt any LS harness that uses an LS...
  • 558-415.jpg
    Holley EFI
    Terminator® Throttle Body Harness
    $214.00
    $214.00
    $214.00
    Terminator® Throttle Body Harness; Replacement Wiring Harness For Use w/PN[550-405/550-406];
  • 558-411.jpg
    Holley EFI
    GM Dual Throttle Body Drive-By-Wire Harness;
    $303.00
    $303.00
    $303.00
    GM Dual Throttle Body Drive-By-Wire Harness;
  • 558-408.jpg
    Holley EFI
    Fuel Injector Connector And Pin Kit
    $168.95
    $188.00
    $168.95
    j2A, j2B, j3, j4 Connector & Pin Kit - Contains connectors & pins, but no wiring. for Dominator EFI
  • 558-406.jpg
    Holley EFI
    Dominator EFI GM Drive By Wire Harness;
    $209.95
    $234.00
    $209.95
    Dominator EFI GM Drive By Wire Harness;
  • 558-405_0118305.jpg
    Holley EFI
    Fuel Injection Wire Harness
    $235.95
    $263.00
    $235.95
    GM 4L60/80E Transmission Harness - Complete terminated harness with j4 connector to operate GM electronic transmissions. for Dominator EFI
  • 565-300k_09.jpg
    Holley EFI
    Sniper EFI Hyperspark Harness; Plug And Play;
    $167.00
    $167.00
    $167.00
    Our HyperSpark Master Kits were designed to make upgrading your ignition on a Sniper EFI-equipped engine simple. When installed concurrently with a new Sniper EFI system, the combination creates th...
  • 558-217_01.jpg
    Holley EFI
    HolleySport EV1 Milspec Injector Harness
    $723.00
    $723.00
    $723.00
    The Holley Sport EV1 Milspec injector harness utilizes Raychem DR-25 heat shrink tubing and transitions, providing protection from extreme temperatures and external contaminations that frequently c...
  • 558-216_0118330.jpg
    Holley EFI
    Unterminated Fuel Injector Harness Kit
    $124.00
    $124.00
    $124.00
    Introducing the latest addition to the Holley EFI Product Lineup! Our EV6 unterminated injector harness is perfect for anyone wanting to add EV6 injectors to their engine bay. This harness kit come...
  • 558-213.jpg
    Holley EFI
    Injector Harness; Evenly Spaced; JETRONIC/Bosch Style Injectors;
    $143.95
    $160.00
    $143.95
    Ford V8 Injector Harness for Jetronic "Bosch" style Fuel Injectors (Evenly Spaced)
  • 558-214.jpg
    Holley EFI
    Multec Injector Harness; For LS Swap; 2 Injector; Early Truck;
    $237.00
    $237.00
    $237.00
    Multec Injector Harness; For LS Swap; 2 Injector; Early Truck;

Showing 2521 -2544 of 4390 items