Holley EFI Dominator EFI Engine Control Module - Wiring Harness - LS1 / LS6 - GM LS-Series Water Pumps Headlamp delay options (2011-16 models

Headlamp delay options (2011-16 models only)

1977-1989 Oldsmobile Custom Cruiser

Vortec Head

Transmission Harness

Holley EFI Dominator EFI Engine Control Module - Wiring Harness - LS1 / LS6 - GM LS-Series Water Pumps Headlamp delay options (2011-16 modelsWhen utilizing a Transbrake, it is mandatory to install either a relay or, our Transbrake input protection device. P N 554 128. This will protect the ECU from any flyback voltage when the Transbrake is released. Dominator EFI systems are sold "a la carte". The following must be purchased for a complete system: ECU (includes software and programming cable), Main Power Harness, Wideband Oxygen Sensor, Main Engine Wiring Harness, Injector Wiring Harness,