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Vivid Racing Gear 
QA1 Mustang II Pro Coil Shock System (MD303-08600)
If you're seeking a top-notch ride quality for both street and strip, the QA1 Mustang II Pro Coil Shock System is your go-to solution. This system offers a variety of options tailored to meet your specific driving needs.
Key Features
- Adjustable Valving Options: Choose from double adjustable, single adjustable, drag "R" series adjustable, or non-adjustable versions to suit your performance preferences.
- Spring Rate Choices: With four different spring rate options, you can customize the suspension to match your driving style.
- Lower Ride Height: Achieve that sleek, "in the weeds" stance with a fully threaded body that allows for precise ride height adjustments.
- Versatile Applications: Perfect for drag racing, street performance, autocross, road racing, and street rod setups.
- High-Performance Components: Each system comes with two QA1 high-performance shocks, two specially designed chrome-plated springs, and all necessary mounting hardware.
Specifications
- Model: MD303-08600
- Shock Type: Front Pro Coil double adjustable Mustang II mount shock
- Spring Size: 8-inch springs with a rating of 600
- Material: Lightweight aluminum for easy handling
- Testing: 100% dyno tested and serialized for quality assurance
- Rebuildable: Can be revalved and serviced at QA1 authorized centers
Fitment
The QA1 Mustang II Pro Coil Shock System is designed for easy, bolt-in installation, making it a hassle-free upgrade for your vehicle. Whether you're hitting the track or cruising down the street, this system will provide the performance and style you desire.
Customer Reviews
"After installing the QA1 Pro Coil system, I noticed a significant improvement in handling and ride comfort. The adjustability really allows me to fine-tune my setup for different driving conditions. Highly recommend!"
"The installation was straightforward, and the quality of the components is impressive. I love the way my Mustang handles now—definitely a worthwhile investment!"
Why Choose QA1?
Made in the U.S.A., QA1 products are known for their exceptional performance and reliability. With a commitment to quality, each system is designed to withstand the rigors of high-performance driving while providing a smooth and controlled ride.
Other Part Numbers:
QA1 #qapMD303-08600
⚠ 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: 18.60 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 10:45:09 |
