Holley EFI Terminator X – GM LS1/LS6

Holley EFI Terminator X – GM LS1/LS6

The Holley EFI Terminator X – GM LS1/LS6 is a powerful, budget-friendly standalone EFI system designed specifically for GM LS1 and LS6 engines with 24x crank reluctors and EV1 injectors. It offers advanced self-tuning fuel strategies, boost and nitrous control, and full laptop tuning capability for enthusiasts seeking precise engine management and improved performance.

Key Features

• Real-time fuel map learning for easy tuning and optimal fuel delivery
• High impedance injector drivers compatible with stock LS and Holley EFI injectors
• Integrated Bosch LSU 4.9 wideband oxygen sensor for accurate AFR feedback
• On-board 1bar MAP sensor ideal for naturally aspirated or nitrous applications
• 4 programmable inputs and outputs for electric fans, boost control, nitrous activation, and more
• Advanced boost control options including boost vs time, gear, RPM, and speed
• Progressive and multi-stage nitrous control with closed loop AFR safeties
• Compact ECU with diagnostic LEDs and CAN/USB tuning cable included
• Plug-and-play compatibility with Holley EFI accessories and free tuning software

Fitment

• GM LS1 and LS6 engines with 24x crank reluctor and EV1 style injectors
• Supports naturally aspirated, nitrous, and forced induction setups

Note: Requires use of the free Terminator X software for initial setup and tuning via laptop; handheld device not included. Verify compatibility before ordering.