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

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

The Holley EFI Terminator X – Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3 is a complete standalone EFI system designed for GM LS engines with 58x crank and 4x cam sensors. It provides advanced engine control, self-learning fuel strategies, and integrated boost and nitrous management to deliver reliable power and tunability for street and track applications.

Key Features

• Real-time fuel map learning for easy tuning
• High impedance injector drivers supporting stock LS and Holley EFI injectors
• Integrated 1bar MAP sensor and Bosch LSU 4.9 wideband O2 sensor for precise AFR control
• 4 programmable inputs and outputs for accessories like fans, boost control, and nitrous
• Boost control with multiple modes and safeties
• Wet and dry nitrous control with progressive and multi-stage options
• On-board diagnostic LEDs for quick troubleshooting
• Includes 3.5″ touchscreen handheld with calibration wizard and data logging
• Compact ECU housing with textured black finish, made in the USA
• Plug-and-play compatibility with Holley EFI accessories and free tuning software

Fitment

• Gen IV GM LS engines including 4.8L, 5.3L, and 6.0L truck engines
• LS2 and LS3 engines with 58x crank and 4x cam sensors

Note: Verify compatibility with your specific engine and wiring harness before ordering. Installation requires basic wiring knowledge and tuning is user-configurable with included handheld or PC software.