Skip to Product Info
    • 558-483_02_P01_ANG.jpg
    • 558-483_01_P04_FRO.jpg
    • 558-483_03_P05_CON.jpg
    • 558-483_04_P01_BAC.jpg
    • App Dash Screen.png
    • App Select Engine.png
    • App Tune Screen.png
    Sale!

    Holley Terminator X Bluetooth Module, Wireless Tuning for iOS & Android | 558-483

    Vendor: Holley EFI
    Part Number: 558-483
    Save $30
    Sale Price $238.95 Regular Price $268.95

    In Stock

    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.
    Payment & Security

    Secure, encrypted checkout. Card details go straight to the payment processor and are never stored by us.

    • Amazon
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Venmo
    • Visa
    Share to:

    This plug-and-play Bluetooth module connects a Terminator X or Terminator X Max ECU to an iOS or Android smartphone for wireless tuning and real-time engine monitoring. It can be used by itself or alongside Holley digital dashes. Tablets are not supported at this time.

    Key Features:

    • Wireless connection to a Terminator X or X Max ECU
    • Works with iOS and Android smartphones
    • Built-in Terminator X EFI wizard, basic tuning, advanced tuning, input/output control and a customizable data monitor
    • Make basic or advanced tuning changes, adjust rev limiter RPM or idle settings without a laptop
    • Live dash display mode turns the phone into a digital dash, using the phone accelerometer to show vehicle speed
    • Mizu-style CANbus connector for a secure installation
    • Browse Holley EFI parts and access technical documents and installation articles from the app

    Specifications:

    • Compatibility: Terminator X and Terminator X Max systems
    • Interface: Bluetooth, iOS and Android smartphones (tablets not supported)
    • Connector: Mizu-style CANbus
    • Finish: Black
    • Availability: USA and Canada only
    • Part Number: 558-483

    Used with Terminator X and Terminator X Max systems. Available only in the USA and Canada.

    FAQ

    Which systems does the Bluetooth module work with?

    Terminator X and Terminator X Max EFI systems.

    Does it work with a tablet?

    No. Holley lists iOS and Android smartphones only; tablets are not supported at this time.

    Can I use it with a Holley dash?

    Yes. It can be used by itself or together with Holley digital dashes.

    Where is it available?

    Holley states it is only available in the USA and Canada.

    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.

    Recently Viewed