550-601 HP EFI ECU And Harness Kit for TPI and Holley Stealth Ram

Name: 550-601 HP EFI ECU And Harness Kit for TPI and Holley Stealth Ram
Brand: HOLLEY
SKU: 510-550-601
Price: 2336.95 USD
Availability: InStock

^$2,336⁹⁵$2749.95You Save$413.00

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Ships on Sep 14, 2026

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ECU & Harness

GM TPI and Holley Stealth Ram
Bosch 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.

Click here for Holley Fuel Injectors

Click here for Holley HP Inline Fuel Pumps