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Vivid Racing Gear 
QA1 GD401-10350A Pro Coil System
If you're looking to enhance your vehicle's suspension, the QA1 GD401-10350A Pro Coil System is an excellent choice. This system offers fully adjustable ride height and valving control, allowing you to tailor your setup to match your driving style perfectly.
Key Features
- Adjustable Valving: Choose from independent compression and rebound double adjustable, simultaneous compression and rebound adjustable, or drag "R" Series adjustable options.
- Lightweight Construction: Made with high-quality billet aluminum, these coil-over shocks are designed to reduce unsprung weight, improving responsiveness and handling.
- High Travel Springs: The American-made springs are specially designed with fewer coils and a smaller wire diameter, resulting in increased travel and better overall suspension performance.
- Easy Installation: This system is designed for a straightforward bolt-in installation, making it accessible for both enthusiasts and professionals.
- Ride Height Adjustment: Fine-tune your vehicle's stance and weight balance for superior handling on the road or track.
- Serviceable and Rebuildable: QA1 authorized service centers can service and rebuild these shocks, ensuring longevity and performance.
- 100% Dyno Tested: Each unit is serialized and rigorously tested to guarantee quality and performance.
- Versatile Applications: Perfect for drag racing, street performance, autocross, road racing, and street rod applications.
- Sold in Pairs: Conveniently packaged for your vehicle's front suspension needs.
Specifications
- Compressed Length: 10.13 inches
- Extended Length: 14 inches
- Spring Length: 10 inches
- Spring Rate: 350 lbs/in
- Spring Type: Tapered pigtail end
Customer Insights
Users have praised the GD401-10350A for its remarkable adjustability and performance across various driving conditions. Many have noted the noticeable improvement in handling and ride quality, particularly when fine-tuning the valving settings. The lightweight design has also received positive feedback for enhancing overall responsiveness, making it a favorite among both casual drivers and serious racers.
Fitment
The QA1 GD401-10350A Pro Coil System is compatible with a wide range of vehicles, making it a versatile choice for those looking to upgrade their suspension. Whether you're hitting the streets or the track, this coil system is designed to meet your performance needs.
Other Part Numbers:
QA1 #qapGD401-10350A
⚠ 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: 20.70 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 |
