Pre-terminated harness for adding coil-on-plug wiring into an ECU harness not originally set up for it.
- 70in overall length
- Pre-loomed with leads labeled for Bank 1 / Bank 2
- Compatible with Holley EFI, Haltech Elite & NEXUS, FuelTech, MoTeC or any other ecu that uses AMP SuperSeal 1.0 terminals.
- Compare to Holley part no. 558-307