Holley EFI Dominator EFI Engine Control Module - Wiring Harness - Drive-By-Wire - LS2 - GM LS-Series Harland Sharp Transmission fluid should always stay

Transmission fluid should always stay in the transmission

Pink high pressure spring (M-55A)comes installed with the lower pressure yellow spring (M-55) also included

Data Logging Unit

No return line needed

2017 Ram 1500 Limited Factory Dual Exhaust Compatible

Holley EFI Dominator EFI Engine Control Module - Wiring Harness - Drive-By-Wire - LS2 - GM LS-Series Harland Sharp Transmission fluid should always stayWhen 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,