Holley EFI Terminator X Max – LS1/LS6

Holley EFI Terminator X Max – LS1/LS6

The Holley EFI Terminator X Max – LS1/LS6 is a high-performance standalone ECU designed to give you complete control over your GM LS1/LS6 engine with 24x crank reluctor and drive-by-wire throttle body. Featuring real-time fuel learning, advanced boost and nitrous control, and user-tuneable settings, this compact and budget-friendly system delivers proven race-winning technology for street and track applications.

Key Features

• Real-time fuel map learning for easy tuning
• High impedance injector drivers for stock and Holley EFI injectors (EV6)
• Integrated 1bar MAP sensor ideal for naturally aspirated and nitrous setups
• 4 programmable inputs and outputs for fans, boost control, nitrous, and more
• Boost control with multiple strategies and safeties
• Wet and dry nitrous control with progressive and multi-stage options
• Includes Bosch LSU 4.9 wideband oxygen sensor for precise AFR feedback
• CAN/USB tuning cable included for laptop tuning with free Terminator X software
• Compact ECU size with diagnostic LEDs for quick troubleshooting
• Plug-and-play compatibility with Holley EFI accessories and digital dashboards

Fitment

• GM LS1 and LS6 engines with 24x crank reluctor
• Drive-by-wire throttle body equipped engines

Note: Verify compatibility with your specific LS engine and injector type before ordering. Initial setup requires a laptop with Terminator X software; handheld tuner is not included. Recommended pedal part number 10379038.