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    QA1 Proma Star Single Adjustable Coil-Over Shock | Bushing Mount 11.125in/16.375in | DS502

    Vendor: QA1
    Part Number: DS502
    Save $27.50
    Sale Price $254.95 Regular Price $282.45

    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 QA1 Proma Star coil-over shock brings coil-over performance to a wide range of custom chassis and engine-swap suspensions where a direct-fit shock is not available. Single-adjustable valving firms or softens ride quality through an 18-click knob, so the same shock works for street driving, spirited canyon runs, or casual track days. The threaded body and included hardware make ride height quick to set for the desired stance, and a 2.5in coil-over spring in the appropriate length and rate is added separately to complete the assembly. Every Proma Star shock is dyno tested, serialized, and made in the USA, and is eligible for a Limited Lifetime Warranty.

    Specifications:

    • Series: QA1 Proma Star coil-over shock
    • Valving: Single-adjustable, 18-click rebound and compression
    • Body: Threaded
    • Mounting: Polyurethane bushing mount, includes sleeves and helps reduce NVH
    • Length (collapsed/extended): 11.125in/16.375in
    • Spring: Accepts 2.5in ID coil-over spring, sold separately
    • Ride height: Adjustable
    • Construction: 100 percent dyno tested and serialized, made in the USA
    • Warranty: Limited Lifetime
    • Part number: DS502

    FAQ

    Does this shock come with a spring?

    No. This is the shock only. A 2.5in inside-diameter coil-over spring in the correct length and rate is purchased separately to build the coil-over assembly.

    What does single-adjustable valving do?

    A single knob provides 18 clicks of simultaneous rebound and compression adjustment, letting the ride be firmed up for performance driving or softened for a comfortable cruise.

    What is the length of the DS502 shock?

    The DS502 measures 11.125in/16.375in collapsed to extended from mounting eye to mounting eye. The shock should have enough travel to avoid overextending or bottoming at the desired ride height.

    Is the QA1 Proma Star shock covered by a warranty?

    Yes. QA1 Proma Star shocks are made in the USA, dyno tested, and eligible for a Limited Lifetime Warranty when registered before installation.

    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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