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, user-tuneable EFI system designed for GM LS truck engines and LS2/LS3 platforms. It delivers advanced self-learning fuel strategies, integrated boost and nitrous control, and drive-by-wire throttle body support, providing enthusiasts complete engine management control for improved performance and reliability.

Key Features

• Designed for GM 4.8/5.3/6.0 LS Truck Engines and LS2/LS3 with 58x crank and 4x cam sensors
• Real-time fuel map learning for precise base fuel tuning
• High impedance injector drivers supporting stock LS and Holley EFI injectors
• Integrated 1 bar 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 modes including boost vs RPM, gear, speed, and time
• Wet and dry nitrous control with progressive and multi-stage options
• Includes 3.5″ touchscreen handheld with calibration wizard, data logging, and gauge display
• Compact ECU with diagnostic LEDs for quick engine status checks
• Plug-and-play compatibility with Holley EFI accessories and free tuning software

Fitment

• GM Gen IV 4.8L, 5.3L, 6.0L LS Truck Engines
• LS2 and LS3 engines with 58x crank and 4x cam sensor

Note: Verify compatibility with your specific engine and vehicle before ordering. Drive-by-wire throttle body and EV1 injector harness included. Requires Holley recommended pedal (P/N 10379038) for full drive-by-wire functionality.