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

QA1 Precision Products, Inc

QA1 Promo Star-12-200 Kit Pro-Rear Coilover D-Adj. 3.00in

$1,127.72 $1,040.01 Save $87.71

SKU: Q00B DD501-12200

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INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

Part #: DD501-12200

Product Overview QA1's Heavy Duty Pro Rear Systems are the perfect solution to add coilovers to your car or truck. Designed for any vehicle with a 1700-2600 lbs. rear axle weight, this kit includes all the necessary hardware and bracketry for a seamless installation. With double shear bracketry and increased spring rates, it ensures the strength and support you need for street and race applications. This simple weld-on kit features axle mount bracketry, upper shock mounts and tubing, and fully adjustable QA1 coilover shocks and springs. Ride Height Adjustability Our axle-mounted brackets offer increments of adjustment, and the coilover shock allows for fine-tuning. Combined, you will have a total of 9 of ride height adjustability, giving you full control for your desired stance. Double-Adjustable Coil-Overs For performance enthusiasts who demand precision handling and control, our double-adjustable Proma Star shocks are the perfect choice. Perfect for both street and track use, double adjustable shocks are famous for their independent rebound and compression tunability, giving you exceptional handling and control for finer control over your suspension. Easy, Weld-In Installation Each kit comes complete with the essential brackets, tabs, and hardware, making it a simple weld-on solution to get the job done efficiently without excess fabrication or trips to the parts store. Best In-Class Lifetime Warranty Register at QA1.net/warranty for lifetime coverage of your QA1 shocks. Made in the USA QA1's Heavy Duty Pro-Rear Systems is proudly made in Lakeville, Minnesota. Fitment Notes Welding required Designed for 3.00 axle tubes Included tubular upper shock mount dimensions are 1-5/8 diameter x .095 wall, 40 long Requires use of QA1 spanner wrench T114W or T115W

Features:

  • Excellent DIY solution for drag, street performance & street rodders alike
  • Available with MOD Series, double, single or non-adjustable valving options
  • All mounting hardware included
  • Made in the USA

HD Pro Rear System includes two double adjustable coilover shocks, two springs, 40" long weld-in tube, and all mounting hardware.

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

MIA's Description

QA1's Heavy Duty Pro Rear Systems are designed to add coilovers to vehicles with a 1700-2600 lbs. rear axle weight, providing all necessary hardware and bracketry for easy installation. The system features axle-mounted brackets that allow for ¾-inch increments of adjustment, offering a total of 9 inches of ride height adjustability for precise stance control. The kit includes double-adjustable Proma Star shocks, known for their independent rebound and compression tuning, providing enhanced handling and control for both street and track applications. Each kit comes with essential brackets, tabs, and hardware for a straightforward weld-on installation, eliminating the need for excess fabrication or additional trips for parts.

Fitment

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Specifications

BrandQA1 Precision Products, Inc
Part NumberQ00B DD501-12200

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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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