J4 Connector & Harness

Get Wired for the Win!

Meet the J4 Connector & Harness from Holley—your secret weapon for dominating the track. Built for those who live for autocross action, this EFI Wiring Harness fits perfectly with the Holley Dominator EFI system. It’s like giving your GM beast a brain boost! With its tangle-free design and sturdy connectors, you’re ready for any road course challenge.

Why Holley?

Holley’s been the go-to name for racers who want reliability with a side of performance. This harness is no exception; it’s crafted with high-quality materials to ensure your ride is always race-ready.

With vibrant wiring colors, it’s not just about function—it's a style statement under the hood. So, slap this bad boy in and stay ahead of the pack!