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Product Summary

Universal Fit, 300 lbs. Spring Rate, 12" Free Height

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    Key Specs

    MFG. Part #12HT300
    Spring Rate300 lbs.
    Free Height12"
    Inside Diameter2.5"
    Material TypeSteel
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    Need To Know

    Quick and Easy Returns

    Return Policy

    QA1 12HT300 Details

    Available in 7", 9", 10", 12", 14" and 16" lengths, QA1 offers an assortment of high travel springs with a silver powder coated finish. Made in the USA, these 2.5" I.D. high travel springs are manufactured from specially designed high-tensile, chrome silicon alloy spring wire, which allows them to have fewer coils and a smaller wire diameter. As a result, these springs are lighter and have increased travel due to the larger distance between the coils. These lighter springs reduce unsprung weight and react faster, optimizing suspension performance.

    In addition, this high-grade material, along with careful heat-treating and post-processing, allows for greatly improved fatigue life, and the coil design allows the springs to be compressed to coil-bind without affecting spring rate or free height.

    These new high travel springs are silver powder coated and ground at both ends for straight, consistent and accurate operations. In addition, all QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions.

    • All QA1 springs are manufactured using the highest quality materials for high strength, consistency and long life
    • All QA1 springs go through intensive manufacturing processes to ensure consistency, accuracy and durability
    • All QA1 springs are ground at both ends to ensure straight, consistent and accurate operation
    • All QA1 springs are clearly marked with the free length of the spring and spring rate for quick and easy identification
    • QA1's high travel springs are proudly made in the USA
    • All QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions

    Guides & Documents

    QA1 12HT300 Specifications

    KEY SPECS
    MFG. Part #12HT300
    BrandQA1
    Spring Rate300 lbs.
    Free Height12"
    Inside Diameter2.5"
    Material TypeSteel
    FinishPowder Coated
    ColorSilver
    Spring Rate Range300 - 399 lbs.
    GENERAL
    Sold in QuantityEach
    GTIN Code806990112477
    Progressive Rate SpringNo
    Coil Spring End (A)Square
    Coil Spring End (B)Square

    Ratings & Reviews

    5

    3 Reviews

    Overall Assessment

    Customers laud the QA1 coilover springs for their quality and performance, particularly in auto-crossing contexts where competitors' springs often bind. The product delivers on usability by fitting seamlessly into setups needing spring rate modifications in rear coilover. The material quality has been proven in demanding situations such as installations in a variety of vehicles, from a '55 T-Bird to a Corvette C-4 IRS suspension. Users recommend the QA1 springs as a reliable and high-performing alternative to other kits.

    5

    3 reviews

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    Filter by Ratings

    QA1 product, coilover springs

    5.0

    5 years ago

    Jeff

    Las Vegas, Nevada

    Verified

    I am changing spring rates in my rear coilover setup and I always use QA1 products, fits and performs as always.

    Would Recommend

    No more coil bind

    5.0

    5 years ago

    Makah21

    mount vernon, wa

    Verified

    was running some 170lb spring that came with coil over kit from upr. Coil bind was happing all over the place while autoxing. The effect were not of good sorts. Have Not race tested these springs yet, but everything feels nice even on public roads before an alignment and height adjustment.

    Would Recommend

    Quality product

    5.0

    6 years ago

    cobrabird

    Titusville Fl

    Verified

    Rear Corvette C-4 IRS suspension installed in a '55 T-Bird

    Would Recommend

    Showing 3 of 3 reviews

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