Holley EFI

Holley EFI 558-503 GM TPI and Stealth Ram EFI Harness Kit

GM TPI and Holley Stealth Ram&trade:

Part # 558-503 Be the first to write a review
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4

Emissions

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

    See Emissions Details
An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Holley's Holley EFI Harness Kit comes complete with the main harness, power harness and injector harness to support your primary system!

Features:

  • Harness Kit Includes: Stealthram/TPI Main Harness, Main Power Harness, V-8 Injector Harness, HEI Ign Harness and Ignition Adapter & Tach Input
  • Simple Installation
  • Works with HP or Dominator ECU's
Brand Holley EFI
Emission Code4
Product TypeEFI Main Harnesses
UPC090127721346
Manufacturer Part Number558-503
Part Number558-503
4

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

NOTICE: You will need to purchase a ECU and O2 Sensor to make this a complete kit.
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