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Vivid Racing Gear 
QA1 GS507-11300C Pro Coil System
If you're looking to upgrade your 1971-1996 Impala or other Full Size GM vehicles, the QA1 GS507-11300C Pro Coil System is a fantastic choice. Designed specifically for Chevy, Buick, Oldsmobile, and Pontiac models, this system offers the flexibility and performance enhancements that serious car enthusiasts crave.
Key Features
- Fully Adjustable Ride Height: Tailor your vehicle’s stance to perfection.
- Valving Control: Choose from independent compression and rebound double adjustable, simultaneous compression and rebound adjustable, or drag "R" Series adjustable options.
- Lightweight Billet Aluminum Construction: Enjoy the benefits of reduced unsprung weight for quicker reactions and improved handling.
- High Travel Springs: Specially designed to provide increased travel thanks to fewer coils and a smaller wire diameter.
- Easy Installation: Bolt-in design makes setup a breeze.
- 100% Dyno Tested: Each unit is serialized and tested for quality assurance.
- Serviceable and Rebuildable: Maintenance is easy with QA1 Authorized Service Centers.
- Made in the USA: Quality craftsmanship you can trust.
Specifications
The GS507-11300C features a compressed length of 9.63 inches and an extended length of 14.5 inches, making it a perfect fit for your vehicle. It comes with an 11-inch spring rated at 300, providing the right balance of performance and comfort.
Fitment
This Pro Coil System is compatible with a variety of applications including drag racing, street performance, autocross, road racing, and street rods. Whether you're cruising down the street or hitting the track, this system adapts to your driving style.
Customer Insights
Users have praised the QA1 GS507-11300C for its remarkable adjustability and ease of installation. Many have noted a significant improvement in handling and ride quality, making it an excellent investment for both casual drivers and hardcore racers. The ability to fine-tune the suspension settings has been a game-changer for many, enhancing their overall driving experience.
Other Part Numbers:
QA1 #qapGS507-11300C
⚠ 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 | $713.98 |
| 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 | $605.07 | $790.94 | ? | $713.95 | ? | 2025-07-11 10:45:07 |
