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Vivid Racing Gear 
QA1 GD507-11250C Pro Coil System
The QA1 GD507-11250C Pro Coil System is the ultimate upgrade for your 1971-1996 Impala or Full Size GM vehicle. Whether you drive a Chevy, Buick, Oldsmobile, or Pontiac, this system is designed to enhance your ride quality and performance with fully adjustable features tailored to your driving style.
Key Features
- Adjustable Ride Height: Customize your vehicle's stance with an easy-to-use threaded body that allows for precise height adjustments.
- Valving Control: Choose from independent compression and rebound double adjustable options, simultaneous compression and rebound adjustable, or drag "R" Series adjustable settings.
- Lightweight Design: Made with high travel springs and lightweight billet aluminum coil-over shocks, this system reduces unsprung weight for faster reaction times and improved suspension performance.
- Easy Installation: The bolt-in design ensures a hassle-free installation process, making it accessible for both enthusiasts and professionals.
- American-Made Quality: Each component is manufactured in the USA and comes 100% dyno tested and serialized, ensuring top-notch reliability and performance.
- Serviceable and Rebuildable: The GD507-11250C can be serviced and rebuilt at QA1 authorized service centers, allowing for long-term use and maintenance.
Specifications
- Compressed Length: 9.63 inches
- Extended Length: 14.5 inches
- Spring Rating: 250 lbs with an 11-inch spring
Fitment
This Pro Coil System is compatible with a variety of Full Size GM vehicles from 1971 to 1996, making it an ideal choice for those looking to enhance their street performance, autocross, road racing, or drag racing capabilities.
Customer Feedback
Users have praised the GD507-11250C for its remarkable adjustability and performance. Many appreciate the ability to fine-tune their ride height and valving, leading to a noticeable improvement in handling and comfort. The lightweight design has been highlighted as a significant advantage, especially for those participating in competitive racing. Overall, this system has received positive reviews for its quality, ease of installation, and performance enhancements.
Other Part Numbers:
QA1 #qapGD507-11250C
⚠ 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 | $917.99 |
| Shipping |
Weight: 28.50 Length: 25 Width: 10 Height: 6 |
| 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 | $777.96 | $1,016.94 | ? | $917.95 | ? | 2025-07-11 10:45:07 |
