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 fully featured standalone EFI system designed to give you complete control over your LS engine’s fuel and spark. Built for Gen IV GM LS engines with 58x crank and 4x cam sensors, it offers real-time fuel learning, advanced boost and nitrous control, and wideband O2 integration for precise tuning. This system is ideal for enthusiasts looking to upgrade from a stock ECU and achieve fast, reliable performance on the street or track.

Key Features

• Self-learning fuel strategy with real-time fuel map learn
• High impedance injector drivers supporting stock and Holley EFI injectors
• Integrated Bosch LSU 4.9 wideband O2 sensor for accurate AFR readings
• 4 programmable inputs and outputs for electric fans, boost solenoids, nitrous control, and more
• Advanced boost control with multiple trigger options and safeties
• Single channel wet/dry progressive nitrous control with closed loop AFR management
• Compact ECU with diagnostic LEDs for quick troubleshooting
• Includes 3.5″ touchscreen handheld with calibration wizard and data logging
• Plug-and-play compatibility with Holley EFI accessories and digital dash systems

Fitment

• Gen IV GM LS engines: 4.8L, 5.3L, 6.0L truck engines and LS2/LS3 platforms
• Designed for engines with 58x crank and 4x cam sensors

Note: Verify compatibility with your specific engine and injector type before ordering. Installation requires basic wiring knowledge; tuning software and handheld included for user customization. Fuel injectors, fuel pump, and other hardware not included.