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Vivid Racing Gear 
QA1 GD401-10550C Pro Coil System
If you're seeking a suspension upgrade that offers flexibility and precision, the QA1 GD401-10550C Pro Coil System is an excellent choice. Designed for performance enthusiasts, this system provides fully adjustable ride height and valving control, allowing you to customize your vehicle's handling to suit your driving style.
Key Features
- Adjustable Valving: Tailor your ride with independent compression and rebound adjustments, or opt for simultaneous adjustments for a more integrated setup.
- Lightweight Design: Crafted from high-quality billet aluminum, these coil-over shocks are designed to minimize weight without compromising performance.
- High Travel Springs: The American-made springs feature fewer coils and a smaller wire diameter, enhancing suspension travel and responsiveness.
- Easy Installation: The bolt-in design makes installation straightforward, getting you back on the road quickly.
- 100% Dyno Tested: Each unit is serialized and rigorously tested to ensure top performance.
- Serviceable and Rebuildable: Maintenance is a breeze with support from QA1 authorized service centers.
- Versatile Applications: Perfect for drag racing, street performance, autocross, road racing, and street rod projects.
Specifications
- Compressed Length: 8.63 inches
- Extended Length: 12.88 inches
- Spring Rate: 550 lbs
- Spring Length: 10 inches
- Sold in Pairs: Each purchase includes a pair of shocks.
Fitment
This Pro Coil System is designed to fit a variety of GM applications, making it a versatile choice for those looking to upgrade their suspension. Whether you're hitting the track or cruising the streets, the GD401-10550C will provide the performance and adjustability you need.
Customer Feedback
Users have praised the GD401-10550C for its impressive adjustability and responsiveness. Many have noted a significant improvement in handling and ride quality, making it a popular choice among both casual drivers and serious racers. The ease of installation and the ability to fine-tune the suspension to their liking have also been highlighted as key benefits.
Other Part Numbers:
QA1 #qapGD401-10550C
⚠ 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 10:45:06 |
