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    Sale!

    Holley Sniper 2 Transmission Control Kit, GM/Ford 4-Speed, Handheld Not Included | 551-103

    Part Number: 551-103
    Save $78
    Sale Price $623.95 Regular Price $701.95

    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 Sniper 2 Transmission Control Kit adds electronic transmission control functionality to a Sniper 2 EFI system via the M8 CAN connection. Upshifts, downshifts, and torque converter lockup are based on vehicle speed and throttle position (or optionally a MAP sensor), and are adjustable through the existing Sniper 2 touchscreen (not included).

    Specifications:

    • Application: Sniper 2
    • Make: GM and Ford
    • Tuning performed through an LCD touchscreen (not included)
    • Tunes upshifts, downshifts, and wide-open throttle (WOT) shift points
    • Full programmability of torque converter lockup and transmission line pressure (shift firmness)
    • Controls and layout interface mirror Dominator and Terminator X Max ECUs (except no paddle shift)
    • Part Number: 551-103

    Controls conventional electronic 4-speed transmission applications; Ford AODE/4R70W and GM 4L60/70/80E transmission-specific harnesses are sold separately (558-405 for GM 4L60/70/80E, 558-455 for 2009+ GM 4L60E, 558-470 for 1998+ Ford 4R70W/4R75W, 558-471 for 1992-1997 Ford AODE/4R70W). A MAP sensor is needed if using MAP for line pressure, typically on forced induction applications. Not compatible with 4WD installations.

    FAQ

    Does the 551-103 include a touchscreen for tuning?

    No, tuning is performed through your existing Sniper 2 LCD touchscreen, which is not included with this controller.

    What transmissions does this kit support?

    Ford AODE and 4R70W and GM 4L60/70/80E transmissions, using harnesses sold separately for each specific application.

    Is this compatible with 4WD vehicles?

    No, this product is not compatible with 4WD installations.

    Do I need a MAP sensor for this controller?

    A MAP sensor is needed only if using MAP for line pressure, which is typically required on forced induction applications.

    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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