Description
Holley EFI Terminator X Max – LS1/LS6
The Holley EFI Terminator X Max – LS1/LS6 is a complete standalone EFI system designed for GM LS1/LS6 engines with 24x crank reluctor and drive-by-wire throttle bodies. It delivers advanced tuning features and real-time fuel learning in a compact, budget-friendly package for enthusiasts seeking precise engine control and performance upgrades.
Key Features
- Real-time fuel map learning for easier tuning
- High impedance injector drivers supporting stock LS and Holley EFI injectors
- Integrated 1 bar MAP sensor ideal for naturally aspirated or nitrous setups
- 4 programmable inputs and 4 outputs for accessories like fans, boost and nitrous control
- Supports boost control with multiple modes and safeties
- Wet and dry nitrous control with progressive and multi-stage options
- Includes 3.5″ touchscreen handheld with calibration wizard and data logging
- Compact ECU with diagnostic LEDs and plug-and-play compatibility with Holley EFI accessories
- Supports E85 fuel, knock retard, coil-per-cylinder ignition, and CAN-BUS integration
Fitment
- GM LS1 and LS6 engines with 24x crank reluctor
- Drive-by-wire throttle body equipped vehicles
Note: Verify compatibility with your specific LS engine and injector type before ordering. Installation requires basic EFI wiring knowledge and tuning software usage. Pedal assembly (Holley P/N 10379038) recommended but sold separately.






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