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, Drive-By-Wire throttle body, and EV1 injectors. It offers advanced, budget-friendly engine control with real-time fuel learning, wideband AFR feedback, and versatile inputs and outputs for boost and nitrous control.

Key Features

Real-time fuel map learning simplifies tuning your base fuel table
High impedance injector drivers support most stock LS and Holley EFI injectors
Integrated Bosch LSU 4.9 wideband oxygen sensor for precise AFR control
On-board 1 bar MAP sensor, ideal for naturally aspirated or nitrous engines
Four programmable inputs and outputs for accessories like fans, boost control, and nitrous
Boost control with multiple modes and safeties, plus nitrous control with progressive options
Includes CAN/USB tuning cable and free Holley EFI software for laptop tuning
Compact ECU with diagnostic LEDs for quick engine status checks
Plug-and-play compatibility with Holley EFI accessories and future digital dash support
Comes with complete wiring harnesses, wideband sensor, vacuum adapters, and necessary connectors

Fitment

GM LS1/LS6 engines equipped with 24x crank reluctor
Drive-By-Wire throttle body and EV1 style injectors

Note: Verify compatibility with your specific LS engine setup before ordering. This system requires use of the free Terminator X software for initial setup and tuning. High impedance injectors only; low impedance injectors are not supported.