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Holley EFI

Holley EFI 558-203 Universal 6 Cylinder Injector Harness

Part # 558-203 Be the first to write a review

Universal 6 Cylinder Injector Harness for HP EFI & Dominator EFI

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Holley EFI 558-203 Universal 6 Cylinder Injector Harness

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$225.95
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Holley offers a variety of direct replacement EFI wiring harnesses, including multi-port, sequential, and throttle body injection styles. These units are made with premium components to ensure better reliability and performance for your ride--and they're compatible with many engine swaps. Holley EFI systems wiring harnesses are sold individually or as a kit; choose the model needed for your fuel injection application.

Features:

  • Terminated and ready for plug and play injector connections
Brand Holley EFI
Emission Code3
Product TypeInjector Harnesses
WarrantyManufacturer's Limited 90 Day (1 Year with Warranty Registration)
UPC090127666470
Manufacturer Part Number558-203
Part Number558-203
3

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition and 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

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
EFI selection chart
Manufacturer's Limited 90 Day (1 Year with Warranty Registration): See Details
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    *Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.

    Holley EFI 558-203 Universal 6 Cylinder Injector Harness
    Holley EFI 558-203 Universal 6 Cylinder Injector Harness
    $225.95