Holley EFI 558-118 Ignition Harness

Built in C-O-P Harness Additional 40 amp relay to power individual coils Pre-Terminated for Ford PWM IAC 20awq gauge wire or larger! Plug and play with 558-312 or 558-318 Smart Coil Sub Harnesses Dual CANbus Connectors for multiple CAN devices Multiple sensor lengths have been extended to accommodate various intake designs