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EFI Wiring Harnesses

EFI wiring harnesses, pigtails and connectors. Main, ignition, injector and dash harnesses for Holley EFI and FuelTech systems. Clean, correctly built wiring is the foundation of a reliable EFI install.

$949.95
Part # 558-501

Wire Harness - LS2/LS3/ LS7 Fuel Injectors - 558-501

Regular price $949.95
$25.99
$42.87
$675.95
$675.95
$624.99
$569.99
$241.99
$28.00
$659.99
$231.99

Goes Great With

EFI install essentials
Part # 4970

Autometer Ultra-Lite II 2 1/16in 8:1-18:1 AFR Analog Wideband FSE A...

Regular price $299.49