Holley EFI Terminator X Stealth GM LS 4150 - BlackThe Terminator X Stealth 4150 EFI system from Holley features 4, 100LB HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 600 HP on forced induction applications. The Terminator X ECU features fuel maps that self learn and integrated ignition timing control, yielding improved idle stability, drivability, and horsepower at wide open throttle! Did we mention that the Stealth 4150 also includes transmission kick down provisions