Suspension and Components Shocks, Struts, Coil-Overs and Components

QA1 Precision Products, Inc

QA1 Promo Star-12-300 Kit Pro-Rear Coilover D-Adj. 3.00in

$1,268.03

SKU: Q00B DD501-12300

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

QA1's Heavy Duty Pro Rear Systems add coilovers to vehicles with a 1700-2600 lbs. rear axle weight. The kit includes hardware and bracketry for seamless installation. Features double shear bracketry and increased spring rates for street and race applications. This weld-on kit includes axle mount bracketry, upper shock mounts and tubing, and fully adjustable QA1 coilover shocks and springs. Axle-mounted brackets offer ¾” increments of adjustment, with coilover shock fine-tuning for a total of 9” of ride height adjustability. Double-adjustable Proma Star shocks provide independent rebound and compression tunability for street and track use. The kit includes essential brackets, tabs, and hardware, simplifying the weld-on solution. QA1 offers a lifetime warranty on shocks (registration required). Made in Lakeville, Minnesota, USA.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandQA1 Precision Products, Inc
Part NumberQ00B DD501-12300

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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