Complete Holley Fuel Injection Kits and Harnesses

Complete Holley Fuel Injection Kits and Harnesses

Fuel Injection Kits for every budget from the leader in performance - Holley. These Plug n Play Systems are easy to install and program, allowing you to accurately control fuel and ignition. Whether you're looking to upgrade your current stock engine, an LS or even looking to upgrade a turbocharged, nitrous-fed engine, Eastwood has a kit from Holley for you.

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16 Item(s)

  • Holley HP EFI Universal MPI Retrofit Kits 550-500

    Holley HP EFI Universal MPI Retrofit Kits 550-500

    HP EFI Universal MPI Retrofit Kit, 4150™ carburetor style intake manifolds
    $2,734.95
    HP EFI Universal MPI Retrofit Kit, 4150™ carburetor style intake manifolds
    $2,734.95
  • Holley Terminator LS MPFI Kit - GM 97-07 4.8/5.3/6.0L Truck Engines 550-614

    Holley Terminator LS MPFI Kit - GM 97-07 4.8/5.3/6.0L Truck Engines 550-614

    1997-2007 4.8/5.3/6.0 Truck Engines with 24x crank reluctor, No Laptop Required, 3.5" Touchscreen Included
    $2,094.95
    1997-2007 4.8/5.3/6.0 Truck Engines with 24x crank reluctor, No Laptop Required, 3.5" Touchscreen Included
    $2,094.95
  • Holley HP EFI ECU & Harness Kits - 99-04 Ford 4 Valve Modular Engine - Includes NTK Oxygen Sensor 550-617N

    Holley HP EFI ECU & Harness Kits - 99-04 Ford 4 Valve Modular Engine - Includes NTK Oxygen Sensor 550-617N

    Complete 99-04 4 Valve Ford Modular Engine Plug and Play Kit - Jetronic “Bosch Style” injector harness - Includes NTK Oxygen Sensor
    $2,263.95
    Complete 99-04 4 Valve Ford Modular Engine Plug and Play Kit - Jetronic “Bosch Style” injector harness - Includes NTK Oxygen Sensor
    $2,263.95
  • Holley HP EFI ECU & Harness Kits - GM LS2/3/7 - Includes NTK Oxygen Sensor 550-603N

    Holley HP EFI ECU & Harness Kits - GM LS2/3/7 - Includes NTK Oxygen Sensor 550-603N

    GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes NTK Oxygen Sensor
    $2,176.95
    GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes NTK Oxygen Sensor
    $2,176.95
  • Holley HP EFI ECU & Harness Kits - GM LS2/3/7 - Includes NTK Oxygen Sensor 550-607N

    Holley HP EFI ECU & Harness Kits - GM LS2/3/7 - Includes NTK Oxygen Sensor 550-607N

    GM LS2/3/7 (58x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes NTK Oxygen Sensor
    $2,176.95
    GM LS2/3/7 (58x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes NTK Oxygen Sensor
    $2,176.95
  • Holley HP EFI ECU & Harness Kits - 99-04 4 Valve Ford Modular Engine 550-616

    Holley HP EFI ECU & Harness Kits - 99-04 4 Valve Ford Modular Engine 550-616

    Complete 99-04 2 Valve Ford Modular Engine Plug and Play Kit - Jetronic “Bosch Style” injector harness - Bosch Wideband O2
    $2,094.95
    Complete 99-04 2 Valve Ford Modular Engine Plug and Play Kit - Jetronic “Bosch Style” injector harness - Bosch Wideband O2
    $2,094.95
  • Holley Terminator LS MPFI Kit 550-610

    Holley Terminator LS MPFI Kit 550-610

    GM LS2/LS3 Engines and 2007 to current 4.8/5.3/6.0 Truck Engines with 58x crank reluctor, No Laptop Required, 3.5" Touchscreen Included
    $2,094.95
    GM LS2/LS3 Engines and 2007 to current 4.8/5.3/6.0 Truck Engines with 58x crank reluctor, No Laptop Required, 3.5" Touchscreen Included
    $2,094.95
  • Holley HP EFI ECU & Harness Kits - 99-04 4 Valve Ford Modular Engine 550-617

    Holley HP EFI ECU & Harness Kits - 99-04 4 Valve Ford Modular Engine 550-617

    Complete 99-04 4 Valve Ford Modular Engine Plug and Play Kit - Jetronic “Bosch Style” injector harness - Bosch Wideband O2
    $2,094.95
    Complete 99-04 4 Valve Ford Modular Engine Plug and Play Kit - Jetronic “Bosch Style” injector harness - Bosch Wideband O2
    $2,094.95
  • Holley HP EFI ECU & Harness Kits - GM LS2/3/7 - Includes Bosch Oxygen Sensor 550-607

    Holley HP EFI ECU & Harness Kits - GM LS2/3/7 - Includes Bosch Oxygen Sensor 550-607

    GM LS2/3/7 (58x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes Bosch Oxygen Sensor
    $2,004.95
    GM LS2/3/7 (58x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes Bosch Oxygen Sensor
    $2,004.95
  • Holley HP EFI ECU & Harness Kits - Universal - Includes NTK Oxygen Sensor 550-605N

    Holley HP EFI ECU & Harness Kits - Universal - Includes NTK Oxygen Sensor 550-605N

    Unterminated Universal Harness, Includes NTK Oxygen Sensor
    $2,103.95
    Unterminated Universal Harness, Includes NTK Oxygen Sensor
    $2,103.95
  • Holley HP EFI ECU & Harness Kits - GM LS1/6 - Includes Bosch Oxygen Sensor 550-602

    Holley HP EFI ECU & Harness Kits - GM LS1/6 - Includes Bosch Oxygen Sensor 550-602

    GM LS1/LS6 (24x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes Bosch Oxygen Sensor
    $2,004.95
    GM LS1/LS6 (24x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes Bosch Oxygen Sensor
    $2,004.95
  • Holley HP EFI ECU & Harness Kits - Universal Ford MPFI V8 - Includes NTK Oxygen Sensor 550-606N

    Holley HP EFI ECU & Harness Kits - Universal Ford MPFI V8 - Includes NTK Oxygen Sensor 550-606N

    Universal FORD V8 Multi-Point Fuel Injection, Includes NTK Oxygen Sensor, and Ford V8 Injector Harness.
    $2,065.95
    Universal FORD V8 Multi-Point Fuel Injection, Includes NTK Oxygen Sensor, and Ford V8 Injector Harness.
    $2,065.95
  • Holley HP EFI ECU & Harness Kits - GM LS2/3/7 - Includes Bosch Oxygen Sensor 550-603

    Holley HP EFI ECU & Harness Kits - GM LS2/3/7 - Includes Bosch Oxygen Sensor 550-603

    GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes Bosch Oxygen Sensor
    $2,004.95
    GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes Bosch Oxygen Sensor
    $2,004.95
  • Holley HP EFI ECU & Harness Kits - GM LS1/6 - Includes NTK Oxygen Sensor 550-602N

    Holley HP EFI ECU & Harness Kits - GM LS1/6 - Includes NTK Oxygen Sensor 550-602N

    GM LS1/LS6 (24x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes NTK Oxygen Sensor
    $2,176.95
    GM LS1/LS6 (24x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes NTK Oxygen Sensor
    $2,176.95
  • Holley Terminator LS MPFI Kit 550-608

    Holley Terminator LS MPFI Kit 550-608

    GM LS1/LS6 Engines with 24x crank reluctor, No Laptop Required, 3.5" Touchscreen Included
    $2,094.95
    GM LS1/LS6 Engines with 24x crank reluctor, No Laptop Required, 3.5" Touchscreen Included
    $2,094.95
  • Holley HP EFI ECU & Harness Kits - Universal MPFI V8 - Includes NTK Oxygen Sensor 550-604N

    Holley HP EFI ECU & Harness Kits - Universal MPFI V8 - Includes NTK Oxygen Sensor 550-604N

    Universal V8 Multi-Point Fuel Injection, Includes NTK Oxygen Sensor
    $2,103.95
    Universal V8 Multi-Point Fuel Injection, Includes NTK Oxygen Sensor
    $2,103.95

Set Descending Direction

16 Item(s)