Holley EFI Terminator X – Gen III 4.8/5.3/6.0 GM Truck Engines

Holley EFI Terminator X – Gen III 4.8/5.3/6.0 GM Truck Engines

The Holley EFI Terminator X – Gen III 4.8/5.3/6.0 GM Truck Engines is a complete standalone EFI system designed specifically for GM LS truck engines with 24x crank reluctor and Multec 2 injectors. It provides precise engine control with self-learning fuel strategies and advanced tuning features, making it ideal for enthusiasts looking to upgrade from a factory ECU to gain better performance and tuning flexibility.

Key Features

• Real-time fuel map learning for easy tuning and improved drivability
• High impedance injector drivers compatible with stock LS and Holley EFI injectors
• Includes Bosch LSU 4.9 wideband O2 sensor for accurate AFR monitoring
• 4 programmable inputs and outputs for electric fans, boost control, nitrous, and more
• Supports boost control with multiple strategies and safety features
• Single channel wet or dry nitrous control with progressive and multi-stage options
• On-board diagnostic LEDs for quick troubleshooting
• Compact ECU design with included 3.5″ touchscreen handheld controller featuring a calibration wizard and data logging
• Plug-and-play harnesses for GM LS 24x crank and Multec 2 injectors included
• Free Holley EFI tuning software with full user-tuneable control

Fitment

• GM Gen III 4.8L, 5.3L, and 6.0L truck engines with 24x crank reluctor and Multec 2 injector connectors

Note: Verify engine compatibility before ordering. Installation requires basic wiring and tuning knowledge. Fuel injectors, fuel pump, and other supporting components are not included and may require upgrades for optimal performance.