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Dominator EFI Auxiliary Harness

Dominator EFI Connector J4 Auxiliary Harness

Part # 558-404 Be the first to write a review
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Free Shipping - Lower 48 US States
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$162.95
Suggested Retail
$182.00
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3

Emissions

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

See Emissions Details
J4 ECU Connector 26 User Programmable Inputs and Outputs

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 Code3
Harness TypeAuxiliary
Product TypeJ4 Auxiliary Input/ Output Harness - Connector
UPC090127666456
Part Number558-404
3

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) 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


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
Holley EFI Dealers
Do you need a custom kit built for your application? Do you need a system installed and tuned? Click here to find the Holley EFI dealer in your area!
Note when purchasing this harness, J4 is also used for Transmission Control.
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    Some parts are not legal for use in California or other states with similar regulations.