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Holley Terminator X

Terminator X and Terminator X Max. Two powertrain management systems from Holley that offer plug and play control for most LS engines starting at just $999. Why settle for a junkyard ECU with a cumbersome aftermarket tuning interface when you can get complete control of your engine, self-learning fuel strategies and the proven, race winning technology of Holley EFI for under a grand!

• Holley EFI 550-904 -Terminator X Early Truck 24x/1x LS MPFI Kit GM LS 24x Crank, 1x Cam - 4.8/5.3/6.0 Truck Engines - Multec 2 Injector Harness , 3.5" Touchscreen Included
• Holley EFI 550-903 -Terminator X LS1 24x/1x MPFI Kit GM LS 24x Crank, 1x Cam - LS1/LS6 Engines - EV1 Injector Harness, 3.5" Touchscreen Included
• Holley EFI 550-905 -Terminator X LS2/LS3 and Late 58x/4x LS Truck MPFI Kit GM LS Engines with 58x Crank, 4x Cam - 4.8/5.3/6.0 Truck Engines and LS2/LS3 - EV6 Injector Harness , 3.5" Touchscreen Included
• Holley EFI 550-916 -Terminator X Max LS1 24x/1x MPFI Kit with Transmission Control GM LS 24x Crank, 1x Cam - LS1/LS6 Engines - 4L60/4L80 Transmission Control, No Laptop Required, 3.5" Touchscreen Included
• Holley EFI 550-917 -Terminator X Max Early Truck 24x/1x LS MPFI Kit with Transmission Control GM LS 24x Crank, 1x Cam - 4.8/5.3/6.0 Truck Engines - 4L60/4L80 Transmission Control, No Laptop Required, 3.5" Touchscreen Included
• Holley EFI 550-918 -Terminator X Max LS2/LS3 and Late 58x/4x LS Truck MPFI Kit with Transmission Control GM LS 58x Crank, 4x Cam - 4.8/5.3/6.0 Truck Engines and LS2/LS3 - 4L60/4L80 Transmission Control, No Laptop Required, 3.5" Touchscreen Included
• Holley EFI 550-926 -Terminator X Max LS1 24X/1X MPFI Kit with DBW Throttle Body and Transmission Control GM LS 24x Crank, 1x Cam - LS1/LS6 Engines - with EV1 Injectors - Drive-By-Wire Throttle Body and Transmission Control, No Laptop Required, 3.5" Touchscreen Included
• Holley EFI 550-927 -Terminator X Max Early Truck 24X/1X LS MPFI Kit with DBW Throttle Body and Transmission Control GM LS 24x Crank, 1x Cam - 4.8/5.3/6.0 Truck Engines - Multec 2 Injectors - and Drive-By-Wire Throttle Body and Transmission Control, No Laptop Required, 3.5" Touchscreen Included
• Holley EFI 550-928 -Terminator X Max LS2/LS3 and Late 58X/4X LS Truck MPFI Kit with DBW Throttle Body and Transmission Control GM LS 58x Crank, 4x Cam - 4.8/5.3/6.0 Truck Engines and LS2/LS3 - EV6 Injectors - Drive-By-Wire Throttle Body and Transmission Control, No Laptop Required, 3.5" Touchscreen Included
• Holley EFI 550-929 -Terminator X Max LS1 24x/1x MPFI Kit with DBW Throttle Body Control GM LS 24x Crank, 1x Cam - LS1/LS6 Engines - EV1 Injectors - and Drive-By-Wire Throttle Body Control, No Laptop Required, 3.5" Touchscreen Included
• Holley EFI 550-930 -Terminator X Max Early Truck 24x /1x LS MPFI Kit with DBW Throttle Body Control GM LS 24x Crank, 1x Cam - 4.8/5.3/6.0 Truck Engines with Drive-By-Wire Throttle Body Control, No Laptop Required, 3.5" Touchscreen Included
• Holley EFI 550-931 -Terminator X Max LS2/LS3 and Late 58X/4X LS Truck MPFI Kit with DBW Throttle Body Control GM LS 58x Crank, 4x Cam - 4.8/5.3/6.0 Truck Engines- EV6 Injectors - Drive-By-Wire Throttle Body Control, No Laptop Required, 3.5" Touchscreen Included