Fuel Injection System Wiring Harnesses

Harness the power and exceptional drivability of fuel injection for your ride. Our selection of fuel injection wiring harnesses makes it easy to bring throttle body, multi-port, or sequential multi-port fuel injection to your vehicle. Whether you’re adding an aftermarket fuel injection system to your existing engine, swapping in a completely new fuel-injected engine, or just replacing old wiring, we’ve got what you need. We carry complete EFI wiring harnesses from Holley, FAST, Ron Francis Wiring, Accel, Painless Performance, and many others. Bring fuel injection to darn near anything—vintage hot rods, street rods, replica cars, or whatever—with fuel injection system wiring harnesses from Summit Racing.