ASK OUR EXPERTS
1-866-464-6553

Holley EFI Terminator X Wideband Adapter Harness

Compatible w/ Terminator X and X Max ECUs

Part # 558-463
In Stock
Your Price
$47.18
Suggested Retail
$52.42
Add to Wish List
Create a new list
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
Service harness sensor adapter for Terminator X and X Max ECU only.

About Holley EFI

Holley is the new standard in EFI! Whether you're engine swapping your classic car or need to manage 4000 horsepower in your twin-turbocharged drag radial race car, Holley EFI has the solutions you need to get your project up and running better than ever!

Brand Holley EFI
Emission Code4
Product TypeHarness
UPC090127106679
Part Number558-463
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

Do not use with HP, Dominator or Sniper EFI systems. Can cause wideband sensor and driver failure.

*Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

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