harness kits
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Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Complete 99-04 2 Valve Ford Modular Engine Plug and Play Kit – Jetronic “Bosch Style” injector harness – Bosch Wideband O2 Part # 550-616
Original price was: $2,954.00.$2,699.95Current price is: $2,699.95. -
Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Complete 99-04 2 Valve Ford Modular Engine Plug and Play Kit – Jetronic “Bosch Style” injector harness – Includes NTK Oxygen Sensor Part # 550-616N
Original price was: $3,270.00.$3,125.95Current price is: $3,125.95. -
Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Complete 99-04 4 Valve Ford Modular Engine Plug and Play Kit – Jetronic “Bosch Style” injector harness – Bosch Wideband O2 Part # 550-617
Original price was: $2,954.00.$2,699.95Current price is: $2,699.95. -
Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Complete 99-04 4 Valve Ford Modular Engine Plug and Play Kit – Jetronic “Bosch Style” injector harness – Includes NTK Oxygen Sensor Part # 550-617N
Original price was: $3,270.00.$3,125.95Current price is: $3,125.95. -
Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM LS1/LS6 (24x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes Bosch Oxygen Sensor Part # 550-602
Original price was: $2,899.00.$2,417.95Current price is: $2,417.95. -
Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM LS1/LS6 (24x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes NTK Oxygen Sensor Part # 550-602N
Original price was: $3,146.00.$2,853.95Current price is: $2,853.95. -
Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS 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 Part # 550-607
Original price was: $2,899.00.$2,699.95Current price is: $2,699.95. -
Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS 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 Part # 550-607N
Original price was: $3,146.00.$3,006.95Current price is: $3,006.95. -
Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes Bosch Oxygen Sensor Part # 550-603
Original price was: $2,899.00.$2,417.95Current price is: $2,417.95. -
Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes NTK Oxygen Sensor Part # 550-603N
Original price was: $3,146.00.$2,853.95Current price is: $2,853.95. -
Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM TPI and Holley Stealth Ram™, Includes NTK Oxygen Sensor Part # 550-601N
Original price was: $3,042.00.$2,906.95Current price is: $2,906.95. -
Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Universal FORD V8 Multi-Point Fuel Injection, Includes NTK Oxygen Sensor, and Ford V8 Injector Harness. Part # 550-606N
Original price was: $2,985.00.$2,489.95Current price is: $2,489.95. -
Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Universal V8 Multi-Point Fuel Injection, Includes NTK Oxygen Sensor Part # 550-604N
Original price was: $3,042.00.$2,536.95Current price is: $2,536.95. -
Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Unterminated Universal Harness, Includes NTK Oxygen Sensor Part # 550-605N
Original price was: $3,042.00.$2,699.95Current price is: $2,699.95.