
Terminator X Max EFI ECU Kit for GM LS1 and LS6 with Drive-By-Wire Throttle Control
LS1/LS6 24x Tooth Reluctor
Terminator X Max is a self-tuning EFI ECU kit for GM LS1 and LS6 engines with drive-by-wire throttle control, real-time fuel learn, and Holley EFI tuning through the included 3.5 in. touchscreen handheld.
Holley 550-929 Highlights:
- Fits GM LS1 and LS6 engines.
- 24x crank, 1x cam, EV1 injector harness.
- Drive-by-wire throttle body control.
- Real-time self-learning fuel with 1-bar MAP sensor.
- Bosch LSU 4.9 wideband oxygen sensor included.
- Includes 3.5 in. touchscreen handheld and main harness.
Standalone Engine Management Systems
Holley EFI has delivered the Terminator X and Terminator X Max standalone engine management systems (EMS) for swappers to take full control of their fuel-injected or multi-point fuel injected (MPFI) engines. Terminator X systems design is a simple plug-and-play unit incorporating self-learning technologies without needing any tuning interfaces, which is often required when using a factory power-train control module (PCM). Terminator X kits offer engine control, while Terminator X Max kits offer both engine and transmission control. Power adders such as nitrous and boost can easily be handled with custom settings and features, making these Terminator X kits ideal street and strip ECMs.




