Holley EFI Terminator X Max – LS1/LS6

Holley EFI Terminator X Max – LS1/LS6

The Holley EFI Terminator X Max – LS1/LS6 is a powerful, budget-friendly engine management system designed specifically for GM LS1 and LS6 engines with 24x crank reluctors and EV1 injectors. It offers complete control over fuel, spark, and transmission functions, making it ideal for enthusiasts building naturally aspirated or boosted LS-powered vehicles who want proven Holley EFI technology with easy tuning and advanced features.

Key Features

• Real-time fuel map learning for precise tuning
• High impedance injector drivers supporting stock LS and Holley EFI injectors
• Integrated 1 bar MAP sensor with vacuum hose adapters included
• 4 programmable inputs and 4 outputs for accessories like fans, boost control, and nitrous
• Boost and nitrous control with advanced safeties and progressive control options
• CAN/USB tuning cable included for laptop tuning with free Holley EFI software
• On-board diagnostic LEDs for quick troubleshooting
• Supports 4L60E and 4L80E transmission control
• Includes wideband oxygen sensor Bosch LSU 4.9 for accurate AFR monitoring
• Compact ECU size for flexible mounting

Fitment

• GM LS1 and LS6 engines with 24x crank reluctor and EV1 injectors
• Compatible with 4L60E and 4L80E transmissions

Note: This system requires use of the free Terminator X Software for initial setup and tuning via laptop. Verify compatibility with your specific engine and transmission before ordering.