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Vehicle Info Needed550-601N HP EFI ECU And Harness Kit for TPI and Holley Stealth Ram
Ships on 09/15/2026
Lowest Price Guarantee- HP EFI ECU & Harness Kit
- GM TPI and Holley Stealth Ram
- NTK Oxygen Sensor
- Simple Installation - Plug And Play
- More Functionality
- Easy To Use
- Ideal For Everything
- Industry Leading Self Tuning Fuel Strategy
- ECU Is Fully Potted And Can Be Mounted In Engine Compt Or Intr.
- Sealed Automotive And Marine Grade Connectors
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
Holley HP Multi-Port EFI Systems for small or big block Chevys are ready for the street or strip with the simple swap of an intake Whether you have a stock engine, crate, or custom-built engine, HP Multi-Port Systems can help you maximize performance By utilizing a laptop (or the optional 5.7" full color touch screen LCD) along with the HP's self-tuning capabilities, the HP Multi-Port EFI System will get you to the cruise or race in no time. HP Multi-Port Systems include an intake manifold, billet throttle body, ECU, wiring harness, fuel rails, and related small parts.
Fuel pumps and Injectors are available separately to fit your requirements.
