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    Sale!

    Holley Sniper EFI HyperSpark Plug and Play Main Harness, For Sniper 1 | 558-328

    Part Number: 558-328
    Save $43
    Sale Price $340.95 Regular Price $383.95

    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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    This harness replaces the Sniper 1 main harness and connects HyperSpark components — distributor, coil, ignition box, and I/O connector — to the Sniper throttle body. It reduces wiring confusion and installation time by requiring only one connection each to battery+, battery-, switched 12V, and the fuel pump.

    Specifications:

    • Color: Black
    • Compatibility: Sniper 1 only
    • Part Number: 558-328

    Not for use with Sniper 2 EFI — this harness is designed for Sniper 1 only. Pre-terminated connectors and a built-in 40A relay supply power to all components in the system for a plug-and-play installation.

    FAQ

    Is this harness compatible with Sniper 2?

    No, it's designed for Sniper 1 only.

    What connections does installation require?

    Only one connection each to battery+, battery-, switched 12V, and fuel pump power.

    What HyperSpark components does this harness connect?

    It connects the HyperSpark distributor, HyperSpark coil, HyperSpark ignition box, and I/O connector to the Sniper throttle body.

    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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