• Holley Terminator X LS EFI system
  • Holley Terminator X Max LS EFI full kit with ECU, touchscreen, harnesses and oxygen sensor
  • Holley Terminator X LS EFI kit with ECU, harnesses and tuning cable
  • Holley Terminator X Max LS EFI 6L80 and 6L90 transmission control kit
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Holley

Holley Terminator X & X Max LS EFI Systems

Holley Terminator X & X Max LS EFI Systems

$1,358.95 USD
$1,358.95 USD
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Controls
Engine & Injector
Display

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.

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