Features:

• Designed to work with the Holley EFI 554-143 injector driver module, and a 554-114 Dominator ECU.
• Techflex F6 loomed harness provides protection from engine bay dirt and grime, while matching your Holley EFI harness for a clean installation.
• Plug and play pre-termination allows you to quickly update your installation to 16+ injectors.
• Allows you to easily add a second set of injectors by utilizing Holley EFI V5 and up with Custom Staged Injection strategies.

About Holley EFI

Find standalone EFI for LS, Coyote, Hemi and more at Holley.com. From engine swapping to managing up to 4000 horsepower, we have a solution for every project!

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