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  • HP ECU

    Shop the Holley HP EFI ECU with USB cable and software for your engine management setup. Explore CAN input/output expansion modules and compatible control accessories to configure your EFI system for your application.

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  • ECU and Harness Kits


    Shop Holley HP EFI ECU and harness kits for GM LS, Ford V8, Modular, Coyote, GM TPI and Stealth Ram applications. Explore engine-specific and universal wiring options to find the right kit for your fuel injection setup.

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  • HP Harnesses

    Shop Holley HP EFI wiring harnesses and harness kits for your engine management installation. Explore main engine, injector and ignition harnesses for GM LS, Ford, Gen III HEMI and TPI/Stealth Ram applications, plus universal harnesses and adapter cables for custom setups.

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  • HP 4bbl Multi Port Retrofit Kits

    Shop Holley HP EFI multi-port injection retrofit kits for 4150 and 4500 carburetor-style intake manifolds. Explore universal MPI retrofit options to convert your four-barrel intake setup to electronic fuel injection.

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Features

  • Plug-and-play harness kits available for GM LS, Ford Coyote, Ford Mod Motor, and Dodge Gen III Hemi as well as universal unterminated harnesses to use on any engine you can imagine
  • Pound per hour and VE fueling strategies let you tune your engine the way you want to
  • Add-ons such as Coyote Ti-VCT control, time-based traction control, and a CAN input/output addition put HP EFI in a class of its own
  • Integrated boost and nitrous control is easy to use and makes add-on control boxes for power adders a thing of the past
  • Built-in base tunes allow you to get your project fired up quickly and easily
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HP EFI

Shop Holley HP EFI systems, ECU and harness kits, and fuel injection accessories. Explore options for GM LS, Ford, GM TPI and Holley Stealth Ram applications, plus universal multi-port injection retrofit kits. Find wiring and components for your engine management upgrade.