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$1,111.95
$999.95
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit

Holley 550-903 Terminator X LS1/LS6 MPFI Kit

Universal Fit, 24x Crank Reluctor, 1x Cam Trigger, Factory GM Ignition Type

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Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
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Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
Holley 550-903 Terminator X LS1/LS6 MPFI Kit
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Holley estimates this item will ship on or before January 21st.
Part # 425550903
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  • An on-board 1bar MAP sensor is perfect for N/A or Nitrous engine combos
  • The real-Time fuel map learn, takes the guess work out of tuning your base fuel table
  • Specifically designed for GM LS1/LS6 engines with 24x crank reluctor and EV1 Injectors
  • Features a single channel of wet or dry, progressive or non-progressive, rich/lean safeties, and target closed loop AFR nitrous control
  • Includes a 3.5" Touchscreen Handheld that contains a calibration wizard which allows you to quickly build a base tune for any LS engine

Details

Crank Reluctor:
24x
Cam Trigger:
1x
Ignition Type:
Factory GM
Injector Connector:
Jetronic / Minitimer (EV1)
MAP Sensor Included:
Yes
Tuner Style:
Touchscreen Handheld
Transmission Control:
No
Throttle Style:
Cable Driven
Oxygen Sensor Style:
Bosch
MFG. Part #:
550-903
GTIN Code:
090127060797
Sold in Quantity:
Kit

Info

Take control of your LS engine with Terminator X! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of Holley EFI at a budget-friendly price! Terminator X 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. Terminator X 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 has the features and technology you need at a price that won't break the bank!

  • For GM LS1/LS6 engines with 24x crank reluctor - with EV1 Injectors.
  • Real-Time fuel map learn, takes the guess work out of tuning your base fuel table.
  • High Impedance Injector Drivers will safely power most Stock LS injectors, and Holley EFI Injectors. Injector support chart provided in the instructions (Will not control Low Impedance Injectors)
  • On-Board 1bar MAP sensor, is perfect for N/A or Nitrous engine combos. 
  • MAP Sensor vacuum hose adapters (1/8th – ¼ and 3/16ths)
  • 4 Inputs – 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake
  • Boost Control – Boost vs Time, Boost vs Gear, Boost vs RPM, Boost vs Speed, Boost Safeties
  • Nitrous Control – Single Channel of Wet or Dry, Progressive or Non-Progressive, Rich/Lean Safeties, and target Closed Loop AFR
  • Advanced Tables – 4x 1D Tables, 1x 1D per Gear Table, 4x 2D Tables, 1x 2D per Gear Table, can be used for any custom tables you can dream up, such as Flex Fuel Sensor Offset Table, or a custom fuel or oil pressure safety!
  • On-Board Diagnostic LEDS for: ECU Power – Engine Run – Wideband Status – TPS Calibration – Crank Signal –Cam Signal. Allow you to identify any Critical engine issues at a glance
  • The included 3.5" Touchscreen Handheld contains a calibration wizard, that allows you to quickly build a base tune for any LS engine. Additionally the handheld provides internal data-logging and a fully customizable gauge display.
  • Plug and play compatible with more Holley EFI accessories such as; analog style gauges, shift lights, various modules, and coming soon, 12.3" digital dash support!

Application

For GM LS1/LS6 engines with 24x crank reluctor with EV1 Injectors.

Specs

**Terminator X ECU's are designed to be mounted with the LED's facing up.

Installation Instructions

Handheld & Reference Manual

Wiring Diagram

Holley EFI Support Forums

Terminator X Software

Important Messages

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations

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