J3 Connector & Harness

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J3 Connector & Harness Upgrade your ride with this J3 Connector & Harness from Holley, a trusted name in car performance. Perfect for GM car and truck lovers who hit the auto cross or road courses, this wiring harness is your ticket to smoother, more reliable racing. The high-quality design ensures your Dominator EFI setup runs like a dream, making those hairpin turns and speedy straights feel effortless. With colorful, durable wiring, it’s as easy to install as pie, and fits right into your vehicle like it was born there. Get this essential piece for your racing machine and feel the difference in every twist and turn! Show more