Holley EFI Terminator X Max – Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3

Holley EFI Terminator X Max – Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3

The Holley EFI Terminator X Max – Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3 is a powerful, budget-friendly standalone EFI system designed specifically for GM LS engines with 58x crank and 4x cam sensors, including Drive-By-Wire throttle bodies. It delivers real-time fuel learning, advanced tuning capabilities, and integrated boost and nitrous control to get your LS-powered vehicle running strong and tuned precisely.

Key Features

• Designed for GM 4.8/5.3/6.0 LS Truck engines and LS2/LS3 with 58x crank, 4x cam, and Drive-By-Wire throttle body
• Real-time fuel map learning for easy and accurate tuning
• High impedance injector drivers supporting stock LS and Holley EFI injectors
• Integrated 1bar MAP sensor ideal for naturally aspirated or nitrous setups
• 4 programmable inputs and 4 outputs for accessories like electric fans, boost control, and nitrous
• Boost control with multiple strategies including boost vs time, gear, RPM, and speed
• Wet and dry nitrous control with progressive and safety features
• Supports coil-per-cylinder ignition and individual cylinder fuel corrections
• Includes Bosch LSU 4.9 wideband oxygen sensor for precise AFR feedback
• CAN/USB tuning cable included; free Terminator X software for laptop tuning
• Compact ECU housing with diagnostic LEDs for quick troubleshooting
• Plug-and-play compatibility with Holley EFI accessories and digital dash options

Fitment

• GM Gen IV 4.8L, 5.3L, and 6.0L LS Truck engines
• GM LS2 and LS3 engines with 58x crank and 4x cam sensors
• Requires Drive-By-Wire throttle body with EV1 injector connectors

Note: Requires PC for initial setup and tuning via included USB/CAN cable. Verify compatibility with your engine and accessories before ordering. Does not support low impedance injectors or include fuel system components.