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 powerful, budget-friendly stand-alone EFI system designed specifically for GM LS engines with 58x crank and 4x cam sensors. It offers complete engine control with self-learning fuel strategies, advanced tuning capabilities, and support for both naturally aspirated and boosted applications, making it ideal for domestic V8 enthusiasts seeking improved performance and drivability.

Key Features

• Real-time fuel map learning for easy and accurate tuning
• High impedance injector drivers compatible with stock LS injectors and Holley EFI injectors
• Integrated Bosch LSU 4.9 wideband oxygen sensor for precise AFR control
• 4 programmable inputs and 4 outputs for accessories like electric fans, boost control, and nitrous
• Boost control options: boost vs time, gear, RPM, and speed with safeties
• Wet and dry nitrous control with progressive and multi-stage support
• On-board diagnostic LEDs for quick engine status checks
• Compact ECU design with CAN/USB tuning cable included (no handheld)
• Plug-and-play compatibility with Holley EFI accessories and software

Fitment

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

Note: Initial setup requires a laptop with the free Terminator X Software via USB/CAN cable; verify injector compatibility and tuning requirements before installation.