HP EFI ECU & Harness Kits

Holley 550-617N Features:

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, NTK O2 sensor, MAP sensor, Coil Drivers and all necessary Harnesses
• The NTK Oxygen Sensor is recommended when using leaded or methanol fuels, high exhaust and forced induction applications or for highest precision feedback

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART