Holley Terminator X EFI Kit 58X Crank 4X Cam And EV6 Injector LS2/ LS3 Engine



  • Complete EFI Kit
  • Loaded With Base Tunes
  • Real Time Fuel Map Learn
  • Boost And Nitrous Support
MSRP $1,778.00
You save 10%

Holley Terminator X EFI Kit for LS2 and LS3 Engines with 58X Crank 4X Cam And EV6 Injectors.

Swapping an LS2 or LS3 into your classic? Simplify the install and control your engine with Terminator X Max (550-931) from Holley! This all-inclusive kit includes self-learning fuel strategies and the proven, race-winning technology of Holley EFI at a budget-friendly price!

Features and Benefits:
· Designed for GM 4.8/5.3/6.0 LS Truck Engines and LS2/LS3 with 58x Crank, 4x Cam and a Drive-By-Wire Throttle Body, with EV6 Injectors.
· Real-Time fuel map learn, takes the guess work out of tuning your base fuel table.
· High Impedance Injector Drivers safely powers most stock and Holley Injectors.
· On-Board 1bar MAP sensor for N/A or Nitrous engine combos
· 4 Outputs for Accessories
· 4 Inputs – 12v, Ground, 5v, and Frequency
· Boost and Nitrous Control
· Advanced Tables
· On-Board Diagnostic LEDS
· The included calibration wizard can quickly build a base tune for any LS engine
· The compact ECU size allows you to mount it virtually anywhere
· Plug and play compatible with more Holley EFI accessories
· Free EFI Tuning Software for complete control
· Recommended Pedal part number – 10379038

Terminator X Max features real-time fuel learn, high impedance injector drivers, an integrated 1bar MAP sensor, and 4 programmable inputs and outputs. The inputs and outputs are ideal for electric fans, boost control solenoids, progressive nitrous control, and much more. Part number 550-931 also has Drive-By Wire Throttle Body control. Terminator X Max comes fully loaded with base maps for common LS engine combinations to get you out of the garage and on the road/track fast. The 3.5" touch screen LCD handheld contains an easy to use calibration wizard as well as tuning and gauge display functions. Also included is Holley EFI's industry-leading, easy to use software suite that allows full laptop access for advanced users. Whether you are building a budget beater or a boosted race car, Terminator X MAX has the features and technology you need at a price that won't break the bank!

This Kit Includes: 58x/4x LS Engine Main Harness - EV6 Injector Harness - DBW Throttle Body Harness - Terminator X MAX ECU - ECU Main Power Harness - Bosch LSU 4.9 Wideband Oxygen Sensor - Input/Output Harness - and assorted vacuum adapters.

California Residents: Proposition 65 Warning

Vehicle Fitment

This product will fit the following Bronco years:

This product will fit the following C10 years:

This product will fit the following F-100 years:

  • 1948,
  • 1949,
  • 1950,
  • 1951,
  • 1952,
  • 1953,
  • 1954,
  • 1955,
  • 1956,
  • 1957,
  • 1958,
  • 1959,
  • 1960,
  • 1961,
  • 1962,
  • 1963,
  • 1964,
  • 1965,
  • 1966,
  • 1967,
  • 1968,
  • 1969,
  • 1970,
  • 1971,
  • 1972,
  • 1973,
  • 1974,
  • 1975,
  • 1976,
  • 1977,
  • 1978,
  • 1979,

This product will fit the following Mustang years:

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