Holley EFI Terminator X Max Service ECU 554-153
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Features:
- OEM (Original Equipment Manufacturer) injectors supported, with part numbers provided in the handheld wizard or software
- Genuine Bosch LSU 4.9 Wideband Control (Will not work with LSU 4.2 Oxygen Sensors)
- 8 Built-in multi-color diagnostic LED's allow you to quickly identify a variety of potential system issues, such as a failed TPS (Throttle Position Sensor) Autoset, faulty crank or cam sensors, or potential oxygen sensor issues
- Built in 1bar MAP (Manifold Air Pressure) sensor. On boosted applications, you can disable the internal MAP sensor, and utilize an external MAP sensor
- 4 Inputs Ð 12v, Ground, 5v, and Frequency for things such as additional pressure sensors, activation triggers for nitrous activation, or a trans brake (fuel and oil pressure inputs are pre-terminated)
- 4 Outputs Ð Ground, PWM - for accessories such as fans, boost control, nitrous control, IAC Kit, and more
- GM LS and LT, Ford Coyote, and Mopar Gen V Drive-by Wire Throttle Body Control (Terminator X Max Only)
- GM 4L60 and 4L80, and Ford 4R70W Transmission Control (Terminator X Max Only)
- Boost Control Ð Boost vs Time, Boost vs Gear, Boost vs RPM, Boost vs Speed, Boost Safeties
- Nitrous Control Ð Single Channel of Wet or Dry, Progressive or Non-Progressive, Rich/Lean Safeties, and target Closed Loop AFR
- Advanced Tables Ð 4x 1D Tables, 1x 1D per Gear Table, 4x 2D Tables, 1x 2D per Gear Table
- Free EFI Tuning Software for complete control of your Terminator X power plant
About Holley EFI

Find standalone EFI for LS, Coyote, Hemi and more at Holley.com. From engine swapping to managing up to 4000 horsepower, we have a solution for every project!
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