Holley EFI Universal MPFI Coil On Plug Main Harness

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Overview This harness provides a plug and play upgrade solution for those seeking to convert to Coil-On-Plug. Additionally we have pre-installed a Power Tap for easy access to 12v, 5v Reference, and Sensor Grounds. UNIVERSAL MPFI W/ COP MAIN HARNESS Features Built in C-O-P Harness Additional 40 amp relay to power individual coils 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 Show more