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Vivid Racing Gear 
QA1 Heavy Duty Pro Rear System (DS501-2501)
Upgrade your ride with the QA1 Heavy Duty Pro Rear System, specifically designed for vehicles with a rear axle weight of 1700-2600 lbs. This comprehensive kit is perfect for those looking to enhance their vehicle's handling and performance, whether on the street or the racetrack.
Key Features
- Complete Installation Kit: Comes with all necessary hardware and bracketry for a smooth installation.
- Double Shear Bracketry: Provides superior strength and support for demanding applications.
- Adjustable Coilover Shocks: Fully adjustable QA1 coilover shocks allow you to customize your ride to your preferences.
- Ride Height Adjustability: Enjoy a total of 9 increments of ride height adjustment for the perfect stance.
- Single-Adjustable Shocks: Easily switch between comfort and performance with a simple dial adjustment.
Installation Made Easy
This weld-on kit is designed for straightforward installation. Each package includes all essential brackets, tabs, and hardware, eliminating the need for extensive fabrication or multiple trips to the parts store. Just weld it in, and you’re ready to hit the road!
Specifications
- Fitment: Welding required; designed for 3.25" axle tubes.
- Upper Shock Mount Dimensions: 1-5/8" diameter x .095 wall, 40" long.
- Included Components: Two single adjustable coilover shocks, two springs, 40" long weld-in tube, and all mounting hardware.
- Spanner Wrench Requirement: Requires QA1 spanner wrench T114W or T115WHD for adjustments.
Durability and Warranty
Rest easy knowing that your investment is protected. The QA1 Heavy Duty Pro Rear System comes with a best-in-class lifetime warranty. Simply register at QA1.net/warranty to ensure lifetime coverage for your QA1 shocks.
Proudly Made in the USA
Manufactured in Lakeville, Minnesota, QA1 takes pride in delivering high-quality products that meet the needs of automotive enthusiasts.
Customer Insights
Users rave about the remarkable improvement in ride quality and handling after installing the DS501-2501. Many appreciate the ability to easily adjust the shocks for different driving conditions, making it a versatile choice for both daily driving and spirited weekend adventures. The straightforward installation process has also received high marks, with customers noting how simple it is to achieve professional results without extensive modifications.
Other Part Numbers:
QA1 #qapDS501-2501
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
QA1 is a company that was founded in 1993. They specialize in manufacturing high-quality suspension parts, shock absorbers, composite driveshafts, bearings, steering components, and other related accessories. Their products are used in different industries such as the industrial, motorsports, and automotive sectors. Today, they are the leading manufacturer of OE parts in the market.
Suspension ExpertsThe company is best known for its motion control sub-assemblies and wide range of suspension systems. They are always searching for new ways to develop each component to enhance their products further.
State-of-the-Art FacilityThe company is housed in one of the most sophisticated facilities in the market to accommodate the increasing demands of its customers. With 100,000 square feet at their disposal, their facility contains high-tech equipment such as a CNC machine, laser cutting equipment, hydraulic presses, and filament windings. It allows them to manufacture the best product in the market.
QA1 is also one of the few companies that are ISO certified. It guarantees that their parts are manufactured consistently, following the standards put in place by the company and the regulators.
Purchase QA1 Products At Vivid RacingIf you are in the market for quality suspension parts for your vehicle, then QA1 is the brand for you. They have been manufacturing components for the last 28 years and have consistently given their customers parts that meet their demand. To know more about QA1, visit Vivid Racing and check out their list of parts that meet your demand.
| Sale price | None |
| Wholesale price | $764.98 |
| Shipping |
Weight: 35.50 Length: 40 Width: 8 Height: 8 |
| Product Added At | Monday 23 December, 2024 |
| Product Modified At | Friday 11 July, 2025 |
| Imported By | ETLOverride |
| Last Edited By | Turn_API |
| View In Admin |
| Carb Approved | - |
|---|---|
| Carb Number | - |
| Epa Status | N/A |
| Prop65 | Yes |
| Carb Required | - |
| Vendor | Inv | Cost | Retail | Jobber | MAP | Core | Updated | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Turn 14 | $648.29 | $847.44 | ? | $764.95 | ? | 2025-07-11 10:45:15 |
