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Vivid Racing Gear 
QA1 Pro-Rear System: DS501-100V1
Revamp your vehicle's rear suspension with the QA1 Pro-Rear System, model DS501-100V1. This system is engineered for performance enthusiasts, offering a variety of options to suit different driving styles and applications. Whether you're into drag racing, street performance, or cruising in a street rod, this system has you covered.
Key Features
- Adjustability Options: Choose from double adjustable, single adjustable, or ride-sensitive non-adjustable valving. Each option is designed to provide the perfect force curve for your specific needs.
- Smooth Adjustments: Enjoy evenly spaced valving changes throughout the adjustment range, ensuring smooth transitions without any jumps between clicks.
- Durable Construction: Crafted from lightweight aluminum, these coil-over shocks are built to last while maintaining optimal performance.
- Ride Height Adjustability: Customize your vehicle's stance with adjustable ride height, allowing for a tailored look and enhanced handling.
- Revalveable and Rebuildable: The shocks can be revalved and rebuilt by QA1 or authorized service centers, ensuring longevity and peak performance.
- 100% Dyno Tested: Each shock is rigorously tested and serialized, guaranteeing quality and reliability.
- Made in the USA: Proudly manufactured in the United States, supporting local craftsmanship.
Specifications
- Model: DS501-100V1
- Shock Type: Proma Star Shocks or Aluma Matic Shocks
- Spring Rates: Variable rate of 100/200
- Included Components: Two single adjustable custom mount coil-over shocks, two springs, and all necessary mounting hardware.
Fitment
The QA1 Pro-Rear System is designed to fit a wide range of applications, making it an ideal choice for performance enthusiasts looking to upgrade their rear suspension setup. Whether you're hitting the drag strip or taking on winding roads, this system will deliver the performance you crave.
Customer Insights
Users have praised the DS501-100V1 for its remarkable adjustability and smooth ride quality. One customer noted, "The adjustment range is fantastic. I can fine-tune the setup for both street driving and track days without any hassle." Another highlighted the ease of installation, stating, "The included hardware made mounting a breeze, and the performance difference was immediately noticeable."
Upgrade your ride with the QA1 Pro-Rear System DS501-100V1 and experience the difference in handling and performance. It's time to take your driving experience to the next level!
Other Part Numbers:
QA1 #qapDS501-100V1
⚠ 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 | $765.99 |
| Shipping |
Weight: 32.00 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 | $649.14 | $848.55 | ? | $765.95 | ? | 2025-07-11 10:45:06 |
