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Description
TERMINATOR X MAX SERVICE ECU - 554-153These standalone Terminator X ECU's (Electronic Control Unit) are intended to be used as service components for your Terminator X EFI installation. The Terminator X ECU 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, or progressive nitrous control. The Terminator X Max ECU features real time
These standalone Terminator X ECU's (Electronic Control Unit) are intended to be used as service components for your Terminator X EFI installation. The Terminator X ECU 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, or progressive nitrous control. The Terminator X Max ECU features real-time fuel learn, high impedance injector drivers, an integrated 1bar MAP sensor, electronic transmission control, drive-by-wire throttle body control, and 4 programmable inputs and outputs. The inputs and outputs are ideal for electric fans, boost control solenoids, progressive nitrous control, and much more.
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 – 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake (Fuel and Oil Pressure Inputs are pre-terminated)
- 4 Outputs – 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 – 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
- Free EFI Tuning Software for complete control of your Terminator X power plant
Specs
| Brand | Holley EFI |
|---|---|
| Product Type | ECU |
| Part Number | 554-153 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 1
Poor quality
Size: 12-18 Months, Color: Blue
Ordered size 12 months. Came in and was a size 9-12 months. Middle button was broken and can not be fixed. Would not suggest for anyone to purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
★★★★★ 5
Great Jackets
Size: Medium, Color: Streamwash
Great jackets . I ordered 4 of these jackets. Love color, the style, look and the way they fit. Great jackets for the fall season
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 21, 2025
★★★★★ 5
Great buy !
Size: Large, Color: Streamwash
Great jacket, true to size. My son loved the fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 15, 2025
★★★★★ 5
Good 👍
Size: X-Large, Color: Streamwash
It's a really good jacket, stylish and above all comfortable. It washes easily and is a basic item in a child's wardrobe super versatile and useful. I'm delighted with it and it arrived quickly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
★★★★★ 5
Love it
Size: X-Small, Color: Streamwash
Great jacket. I ordered three of them and they fit comfortably. The size is perfect. They seem very durable and not flimsy material.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 16, 2025
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