Holley Terminator X & X Max LS EFI Systems

Holley Terminator X and Terminator X Max standalone EFI systems for GM Gen III/IV LS applications. Select the control package, crank/injector harness combination, and display/tuning interface to match your swap. Terminator X handles fuel and spark. Terminator X Max adds available drive-by-wire and electronic transmission-control options. Real-time fuel learning and self-tuning capability High-impedance injector drivers Bosch LSU 4.9 wideband oxygen sensor support Integrated 1-bar MAP sensor Boost and nitrous control strategies Four programmable inputs/outputs Free Holley EFI tuning software Fitment note: Confirm crank reluctor, cam pattern, injector connector, throttle type, and transmission before ordering. 6L80E/6L90E control is only offered in the Holley combinations listed in the dropdowns. Emissions notice: Holley lists these systems under Emission Code 3 for uncontrolled/non-emissions-controlled vehicle applications. Verify legality for your vehicle and location before installation.