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    Sale!

    Holley Terminator EFI Replacement ECU, Self-Tuning, Plug-and-Play | 554-119

    Vendor: Holley EFI
    Part Number: 554-119
    Save $294
    Sale Price $2,349.95 Regular Price $2,643.95

    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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    An EFI system so easy and powerful it feels alive — this is the replacement ECU for a Terminator EFI installation. Bolt it on, answer a few basic setup questions, and let Terminator EFI take over the tuning.

    Key Features:

    • ECU only, ready to bolt into an existing Terminator EFI harness
    • Easy to install, no computer experience required
    • Simple multiple-choice setup wizard
    • Self-tunes while you drive
    • Upgradable to complete laptop control without buying another ECU
    • Supports coil-per-cylinder ignition
    • CAN-BUS support
    • Boost control support
    • e85 support
    • EGT support
    • Individual cylinder fuel corrections
    • Knock retard support
    • Multi-stage wet and dry nitrous control
    • Progressive nitrous control
    • Traction control support

    Specifications:

    • Product Type: Terminator ECU replacement/service part
    • Ignition Support: Coil-per-cylinder
    • Self-Tuning: Yes
    • CAN-BUS Support: Yes
    • Boost Control: Yes
    • Nitrous Control: Wet, dry, multi-stage, progressive
    • Knock Retard Support: Yes
    • User-Tuneable: Yes
    • Recommended Use: Not recommended for marine applications; off-road use requires a safe, dry, heat-protected location
    • Part Number: 554-119

    FAQ

    Is this a full Terminator EFI kit?

    No, this is the ECU only, intended as a replacement for an existing Terminator EFI installation.

    Do I need a laptop to set it up?

    No. It uses a simple multiple-choice setup wizard and self-tunes while you drive, though it's upgradable to full laptop control without buying another ECU.

    Does it support nitrous and boost?

    Yes, it supports multi-stage wet or dry nitrous control, progressive nitrous control, and boost control.

    Can it be used in a boat?

    No, it's not recommended for marine applications, though it can be used off-road in a safe, dry, heat-protected location.

    Does it support individual cylinder tuning?

    Yes, it offers individual cylinder fuel corrections along with knock retard support.

    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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