Terminator LS MPFI Kit

GM LS2/LS3 Engines and 2007 to current 4.8/5.3/6.0 Truck Engines with 58x crank reluctor - with TRANSMISSION CONTROL, No Laptop Required, 3.5" Touchscreen Included

PART# 550-612

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Estimated shipping date: 03/23/2018
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Get all the great features of Terminator self-tuning EFI in a bolt-on system for GM’s popular LS engines! The 550-612 kit controls fuel, spark, and 4L60/4L80E transmissions through the Terminator’s new 3.5" touchscreen! Install, answer a few basic questions and drive. No laptop required!


  • For GM LS2/3 engines and 2007 to current 4.8/5.3/6.0 truck engines with 58x crank reluctor and 4L60/4L80E transmissions
  • Kit includes everything you need to control your stock or mild LS
  • Bosch wideband oxygen sensor included
  • Controls fuel, spark, and 4L60/4L80E transmissions
  • Pre-calibrated for no-hassle installation and tuning
  • Fully adjustable through included 3.5” full color touchscreen


BrandHolley EFI
Crank Reluctor58x
Emission Code3
Injector ConnectorUSCAR (EV6)
Product TypeTerminator LS MPFI Kit
Terminator LS OptionsFuel, Spark, Transmission
Part Number550-612


This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

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        Some parts are not legal for use in California or other states with similar regulations.