Main Harness - Univesal Un-Terminated

Get Race-Ready with Holley’s Universal Main Harness

Step up your racing game with the Holley Main Harness. This universal, unterminated EFI wiring harness is tailor-made for your GM car or truck. Perfect for autocross and road courses, it’s like the secret sauce for your ride’s performance.

Why Choose Holley?

Holley, a legend in the automotive world, delivers reliability you can trust. Our harness is crafted for those who want to take their Chevy, Pontiac, or Buick to the next level.

What's Inside?

This kit's got all the essentials and then some. With a tangle of high-quality wires and connectors, you’ll have everything you need for a seamless install.

Upgrade your setup and watch your ride’s performance soar—without any of that marketing fluff!