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Vivid Racing Gear 
QA1 GS501-10550A Pro Coil System
If you're on the hunt for a suspension upgrade that combines performance and adjustability, the QA1 GS501-10550A Pro Coil System is an excellent choice. This system is designed specifically for 1964-67 GM A-Body vehicles, providing the perfect blend of comfort and control for various driving styles.
Key Features
- Adjustable Ride Height: Tailor your vehicle's stance and balance effortlessly with a fully threaded body, allowing you to fine-tune the ride height to your preference.
- Customizable Valving: Choose from independent compression and rebound double adjustable, simultaneous compression and rebound adjustable, or the drag "R" Series adjustable options to match your driving style.
- High Travel Springs: American-made lightweight springs with fewer coils and a smaller wire diameter provide increased travel, enhancing suspension performance.
- Lightweight Design: The use of lightweight billet aluminum coil-over shocks reduces unsprung weight, allowing for quicker reactions and improved handling.
- Easy Installation: The kit is designed for a straightforward bolt-in installation, making it accessible for both DIY enthusiasts and professionals.
- Durability: 100% dyno tested and serialized, these shocks are serviceable and rebuildable at authorized QA1 service centers, ensuring longevity and reliability.
- Versatile Applications: Perfect for drag racing, street performance, autocross, road racing, and street rod applications.
Specifications
- Front / Rear: Front
- Adjustability: Single Adjustable
- Spring Rate: 550 lb/in
Fitment
- Compatible with 1964-67 GM A-Body vehicles
Customer Insights
Users have praised the QA1 GS501-10550A for its remarkable adjustability, noting how easy it is to achieve the desired ride height and handling characteristics. Many have highlighted the noticeable improvement in ride quality and cornering stability, making it a solid investment for both casual drivers and racing enthusiasts alike.
Whether you're cruising down the street or tackling a racetrack, the QA1 GS501-10550A Pro Coil System delivers performance and flexibility that meets the demands of any driving experience.
Other Part Numbers:
QA1 #qapGS501-10550A
⚠ 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: 24.40 Length: 25 Width: 10 Height: 6 |
| Product Added At | Sunday 09 August, 2020 |
| 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 10:44:41 |
