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Vivid Racing Gear 
QA1 DD902 Proma Star Coil-Overs
Upgrade your vehicle's suspension with the QA1 DD902 Proma Star Coil-Overs, designed for those who seek a blend of performance and adaptability. Whether you're building a custom chassis or enhancing your existing setup, these coil-overs are the perfect solution for a wide variety of vehicles.
Key Features
- Stroke Length: Available in 3" to 9" for versatile applications.
- Adjustability: Choose between single or double-adjustable valving to tailor your ride experience.
- Ride Height Adjustability: Quickly adjust your ride height for the ideal stance with included hardware.
- Spring Compatibility: Just add a 2.5" spring of the appropriate length and rate to get started.
- Multiple Mounting Options: Choose from poly bushing, bearing mount, or extended eyelets to fit your specific needs.
Performance Benefits
The DD902 coil-overs provide a significant upgrade in ride quality and handling. The single-adjustable shocks are perfect for street cars, allowing you to easily adjust the stiffness with a simple twist of a knob. For those who frequent the track, the double-adjustable option offers independent compression and rebound tuning, ensuring optimal performance whether you're on the street, drag strip, or road course.
Specifications
- Adjustability: Double Adjustable
- Mounting: Bushing
- Compressed Height: 15 inches
- Extended Height: 23.625 inches
- Recommended Ride Height: 18" to 21.5"
Installation and Maintenance
Installing the QA1 DD902 coil-overs is straightforward. For detailed guidance, refer to the Installation Guide.
Important Notes
- Ensure your shock has sufficient travel to prevent overextending or bottoming out.
- Consider using available spanner wrenches and thrust bearings for easier ride height adjustments.
- If utilizing a stock spring pocket, verify that you can achieve your desired ride height while maintaining adequate shock travel.
Customer Insights
Users have praised the QA1 DD902 coil-overs for their remarkable adjustability and improved handling. Many noted how easy it was to dial in the perfect ride quality, making them a favorite among both street enthusiasts and track racers. The build quality also received high marks, with several reviewers highlighting the robust construction that inspires confidence on various terrains.
Warranty Information
All QA1 Proma Star shocks are proudly made in the USA and undergo rigorous dyno testing to guarantee performance and quality. They come with an industry-leading Limited Lifetime Warranty. Be sure to register your shocks at QA1.net/warranty before installation for full warranty benefits.
Other Part Numbers:
QA1 #qapDD902
⚠ 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 | $326.97 |
| Shipping |
Weight: 5.40 Length: 19 Width: 4 Height: 4 |
| Product Added At | Monday 29 January, 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 | $277.09 | $362.21 | ? | $326.95 | ? | 2025-07-11 10:44:51 |
