Description
Holley EFI Terminator X – GM LS1/LS6
The Holley EFI Terminator X – GM LS1/LS6 is a complete standalone EFI system designed for GM LS1 and LS6 engines with 24x crank reluctor and EV6 injectors. It offers advanced self-tuning capabilities, real-time fuel learning, and integrated features like boost and nitrous control, making it ideal for enthusiasts seeking precise engine management and improved performance on naturally aspirated or nitrous-assisted setups.
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 for naturally aspirated or nitrous engines
- 4 programmable inputs and outputs for electric fans, boost solenoids, and nitrous control
- Advanced boost control features including boost vs time, gear, RPM, and speed
- Supports single and progressive wet or dry nitrous control with safety features
- Includes Bosch LSU 4.9 wideband oxygen sensor for accurate AFR monitoring
- Compact ECU with diagnostic LEDs and plug-and-play compatibility with Holley accessories
- Includes 3.5″ touchscreen handheld with calibration wizard and data logging
- Free EFI tuning software for full user control
Fitment
- GM LS1 and LS6 engines with 24x crank reluctor
- Compatible with EV6 style fuel injectors
Note: Verify compatibility with your specific engine combination before ordering. Installation requires basic wiring knowledge; tuning support and software are included.





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