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    Sale!New!

    Holley EFI Compatible with all Terminator X Harnesses 554-153

    Vendor: Holley EFI
    Part Number: 554-153
    Save $163
    Sale Price $1,299.95 Regular Price $1,462.95

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    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.


    Holley EFI Compatible with all Terminator X Harnesses 554-153


    Specifications:

    Description_INV TERMINATOR X MAX ECU
    Description_ASC ECU is not recommended for marine applications, but can be used on off-road applications as long as you choose a safe location, keep it dry, protect from heat, and ensure proper wiring management.
    Description_DES Holley EFI Terminator X Max Service ECU
    Description_EXT Compatible with all Terminator X Harnesses
    Description_MKT 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.
    Description_FAB OEM (Original Equipment Manufacturer) injectors supported, with part numbers provided in the handheld wizard or software
    Description_FAB Genuine Bosch LSU 4.9 Wideband Control (will not work with LSU 4.2 oxygen sensors)
    Description_FAB 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
    Description_FAB Built in 1bar MAP (Manifold Air Pressure) sensor. On boosted applications, you can disable the internal MAP sensor, and utilize an external MAP sensor
    Description_FAB 4 Inputs – 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)
    Description_FAB 4 Outputs – Ground, PWM - for accessories such as fans, boost control, nitrous control, IAC Kit, and more
    Description_FAB GM LS and LT, Ford Coyote, and Mopar Gen V Drive-by Wire Throttle Body Control (Terminator X Max Only)
    Description_FAB GM 4L60 and 4L80, and Ford 4R70W Transmission Control (Terminator X Max only)
    Description_FAB Boost Control – Boost vs Time, Boost vs Gear, Boost vs RPM, Boost vs Speed, Boost Safeties
    Description_FAB Nitrous Control – Single Channel of Wet or Dry, Progressive or Non-Progressive, Rich/Lean Safeties, and target Closed Loop AFR
    Description_FAB Advanced Tables – 4x 1D Tables, 1x 1D per Gear Table, 4x 2D Tables, 1x 2D per Gear Table
    Description_FAB Free EFI tuning software for complete control of your Terminator X power plant
    Brand Holley EFI
    Category Air and Fuel Delivery
    Emission Code 4
    3390 Performance
    30 No
    356 4
    Product Type ECU
    2070 No
    Warning California Proposition 65
    Brand Holley EFI
    Category Air and Fuel Delivery
    Emission Code 4
    3390 Performance
    30 No
    356 4
    Product Type ECU
    2070 No
    Warning California Proposition 65
    Description_INV TERMINATOR X MAX ECU
    Description_ASC ECU is not recommended for marine applications, but can be used on off-road applications as long as you choose a safe location, keep it dry, protect from heat, and ensure proper wiring management.
    Description_DES Holley EFI Terminator X Max Service ECU
    Description_EXT Compatible with all Terminator X Harnesses
    Description_MKT 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.
    Description_FAB OEM (Original Equipment Manufacturer) injectors supported, with part numbers provided in the handheld wizard or software
    Description_FAB Genuine Bosch LSU 4.9 Wideband Control (will not work with LSU 4.2 oxygen sensors)
    Description_FAB 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
    Description_FAB Built in 1bar MAP (Manifold Air Pressure) sensor. On boosted applications, you can disable the internal MAP sensor, and utilize an external MAP sensor
    Description_FAB 4 Inputs – 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)
    Description_FAB 4 Outputs – Ground, PWM - for accessories such as fans, boost control, nitrous control, IAC Kit, and more
    Description_FAB GM LS and LT, Ford Coyote, and Mopar Gen V Drive-by Wire Throttle Body Control (Terminator X Max Only)
    Description_FAB GM 4L60 and 4L80, and Ford 4R70W Transmission Control (Terminator X Max only)
    Description_FAB Boost Control – Boost vs Time, Boost vs Gear, Boost vs RPM, Boost vs Speed, Boost Safeties
    Description_FAB Nitrous Control – Single Channel of Wet or Dry, Progressive or Non-Progressive, Rich/Lean Safeties, and target Closed Loop AFR
    Description_FAB Advanced Tables – 4x 1D Tables, 1x 1D per Gear Table, 4x 2D Tables, 1x 2D per Gear Table
    Description_FAB Free EFI tuning software for complete control of your Terminator X power plant


    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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