Skip to Product Info
    • 550-93719268.jpg
    • caps1966.jpg
    • injectorid1978.png
    • terminatorxdems_21975.jpg
    • wire21966.jpg
    Sale!

    Holley EFI Universal MPFI Main Harness - Ford Spaced EV1 Injectors - 3.5 in. Touchscreen 550-937

    Vendor: Holley EFI
    SKU: GVMR_550-937
    19% Off
    Sale Price $1,303.95 Regular Price $1,606.95
    Pairs well with
    Free Shipping on Orders Over $99
    Professional, Enthusiast-Driven Customer Support
    International Shipping Available - Contact Us!
    Payment & Security

    Payments are processed through secure, encrypted systems. Your credit card details are never stored or accessible by us.

    • Amazon
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Venmo
    • Visa
    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.


    Holley EFI Universal MPFI Main Harness - Ford Spaced EV1 Injectors - 3.5 in. Touchscreen 550-937


    Specifications:

    Description_INV TERMINATOR X MPFI FORD
    Description_ASC Terminator X ECU's are designed to be mounted with the LED's facing up.If utilizing FORD OEM TPS and IAC sensor, must wire in Ford connector (not supplied)
    Description_DES Holley EFI Terminator X - Ford MPFI Kit
    Description_EXT Universal MPFI Main Harness - Ford Spaced EV1 Injectors - 3.5 in. Touchscreen
    Description_MKT Take control of your conventional Ford engine with Terminator X. Don't settle for a factory ECU with a cumbersome tuning interface or pre-programmed tuning chip 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.
    Description_MKT 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 V8 engine combinations to get you out of the garage and on the road/track fast.
    Description_MKT 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.
    Description_FAB Plug and play Ford V8 engine control, such as the 302w, 351w or 460 Big Block
    Description_FAB Includes EV1 Injector Harness
    Description_FAB High Impedance Injector Drivers will safely power most Stock injectors and Holley EFI Injectors; injector support chart provided in the instructions (will not control Low Impedance Injectors)
    Description_FAB All of the new Terminator X systems utilize the Bosch LSU 4.9 wideband to relay AFR information to the ECU for accurate reading and precise tuning control
    Description_FAB Built in 1bar MAP Sensor, vacuum hose adapters included (1/8th – ¼ and 3/16ths)
    Description_FAB Boosted applications – you can disable the internal MAP sensor, and utilize an external MAP Sensor; the harness comes with the connector terminated, for easy installation
    Description_FAB MAP Sensor vacuum hose adapters (1/8th – ¼ and 3/16ths)
    Description_FAB Plug and plug ignition capability with Dual Sync and HyperSpark Distributors, adapter 558-323 required for HyperSpark Distributors
    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
    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 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
    Description_FAB On-Board Diagnostic LEDS for: ECU Power – Engine Run – Wideband Status – TPS Calibration – Crank Signal – Cam Signal; allows you to identify any critical engine issues at a glance
    Description_FAB The included 3.5" Touchscreen Handheld contains a calibration wizard that allows you to quickly build a base tune for any domestic V8 engine. Additionally the handheld provides internal data-logging and a fully customizable gauge display
    Description_FAB The compact ECU size allows you to mount it virtually anywhere; remember, diagnostic LEDS must face up
    Description_FAB 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
    Description_FAB Free EFI Tuning Software for complete control of your Terminator X power plant


    Shipping Policy

    Cancellations

    Once an order is placed, in most cases it cannot be cancelled as they are sent for fulfillment almost immediately after receiving the order. If there is an ability to cancel the order, the buyer is responsible for the transaction fees charged from the transaction.

    Processing Time

    In-stock orders are typically processed and shipped within 1–2 business days of receiving payment, unless otherwise stated on the product page. Orders placed on weekends or holidays will be processed on the next business day.

    Shipping Costs

    Shipping costs are calculated based on the shipping method selected, the weight and dimensions of the package, and the destination address. You can view the shipping costs for your order during the checkout process before finalizing your purchase.

    Tracking Information

    Once your order has been shipped, you will receive a shipping confirmation email with tracking information. You can use this information to track the status of your package and monitor its delivery progress.

    Delivery Time

    While we make every effort to ensure timely delivery, please note that delivery times may vary due to factors beyond our control, such as weather conditions or carrier delays.

    International Shipping

    For international orders, please be aware that customs duties, taxes, and other fees may apply upon delivery. These additional charges are the responsibility of the recipient and are not included in the shipping cost paid at checkout. Please check with your local customs office for information on potential fees before placing your order.

    Shipping Address

    Please ensure that the shipping address provided during checkout is accurate and complete. We are not responsible for orders shipped to incorrect or undeliverable addresses due to customer error.

    Return Policy

    Return Period

    You have up to 30 days from the date of purchase to return eligible items.

    Condition of the Item

    A 20% restocking fee will apply to cover inspection, processing, and repackaging costs.

    Items must be returned in new, unused condition and include all original packaging, hardware, and documentation.

    Return Shipping

    The cost of return shipping is the responsibility of the buyer unless the item was received damaged, defective, or incorrect.

    Return Authorization

    Before returning any item, please contact our customer service team to obtain a Return Merchandise Authorization (RMA) number. Items returned without an RMA may not be accepted.

    Refund Processing

    Once the returned item is received and inspected, we will initiate the refund process. Please allow 2–5 days for the refund to be processed and credited to the original payment method. Bank processing times may vary.

    Damaged or Defective Items

    If you receive a damaged, defective, or incorrect item, contact us immediately for assistance. We’ll work quickly to resolve the issue or send a replacement.

    Final Sale Items

    Certain items may be marked as Final Sale and are not eligible for return or exchange. These will be clearly noted on the product page.

    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.

    Recently Viewed