Holley EFI Terminator X Max – LS1/LS6

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 and LS6 engines with 24x crank reluctor and EV6 injectors. It delivers advanced self-tuning fuel strategies, integrated boost and nitrous control, and user-tuneable features to optimize performance and reliability for street or track applications.

Key Features

• Real-time fuel map learning for easy tuning
• High impedance injector drivers supporting stock LS and Holley EFI injectors
• On-board 1 bar MAP sensor for naturally aspirated or nitrous setups
• 4 programmable inputs and 4 outputs for accessories, boost, and nitrous control
• Boost control with multiple strategies 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 harnesses for LS engines and 4L60E/4L80E transmissions
• Supports CAN-BUS, knock retard, EGT, accelerometer, and coil-per-cylinder ignition
• Compatible with Holley EFI accessories and free tuning software

Fitment

• GM LS1 and LS6 engines with 24x crank reluctor and EV6 injectors
• 4L60E and 4L80E automatic transmissions

Note: Verify compatibility with your engine and transmission before ordering. Installation requires basic wiring knowledge; tuning software and handheld provide full control. For forced induction over 1 bar, separate MAP sensor upgrade recommended.