Holley 99-04 4 Valve Ford Modular Engine HP EFI ECU & HARNESS KITS

$2,398.00 $2,157.95

Complete 99-04 4 Valve Ford Modular Engine Plug and Play Kit – Jetronic “Bosch Style” injector harness – Bosch Wideband O2

SKU: 550-617 Categories: , ,


Looking for a plug and play kit for your Ford Modular engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Is your cam too wild for a MAF? Power adders? You name it, and Holley EFI can handle it.


  • Designed specifically for 1999-2004 Ford Modular 4 Valve Engines
  • Plug and play with factory sensors; Crank, Cam, TPS, Coolant Temp, etc
  • Plug and play with factory actuators; Coils, Injectors, IAC
  • Connectors for Holley Fuel Pressure and Oil Pressure sensors
  • Connectors for expanded Inputs and Outputs
  • Complete plug and play kit includes HP ECU, Bosch Wideband O2 sensor, MAP sensor, Coil Drivers and all necessary Harnesses


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Parts Information

Make Model Year
Ford Mustang Cobra 1999
Ford Mustang Cobra 2000
Ford Mustang Cobra 2001
Ford Mustang Cobra 2002
Ford Mustang Cobra 2003
Ford Mustang Cobra 2004
Ford Mustang Mach 1 2003
Ford Mustang Mach 1 2004