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Vivid Racing Gear 
QA1 Mustang II Pro Coil Shock Systems (MD301-08375)
Experience a new level of ride quality with the QA1 Mustang II Pro Coil Shock Systems. Perfectly designed for both street and strip applications, this system offers a variety of adjustable options tailored to meet your specific performance needs.
Key Features
- Adjustable Options: Choose from double adjustable, single adjustable, drag "R" series adjustable, or non-adjustable valving to find the perfect fit for your ride.
- Ride Height Customization: The fully threaded body allows for easy ride height adjustments, giving you the ideal stance and balance for superior handling.
- Spring Rate Variability: Select from four different spring rate options to match your driving style and performance requirements.
- Versatile Applications: This system is suitable for drag racing, street performance, autocross, road racing, and street rod applications.
Specifications
- Included Components: Each pro coil system comes with (2) QA1 high-performance shocks, (2) chrome plated springs, and all necessary mounting hardware.
- Made in the USA: Quality craftsmanship you can trust.
- Easy Installation: Bolt-in installation makes upgrading your vehicle straightforward and hassle-free.
- Lightweight Design: Constructed from lightweight aluminum for improved performance.
- Dyno Tested: Each unit is 100% dyno tested and serialized for quality assurance.
- Rebuildable & Revalveable: Can be serviced by QA1 factory or authorized service centers for long-lasting performance.
- Sold in Pairs: Each order includes two shocks for complete front suspension enhancement.
Fitment
The MD301-08375 is specifically designed for Mustang II applications, providing a perfect fit for enthusiasts looking to upgrade their suspension system.
Customer Insights
Users have praised the QA1 Mustang II Pro Coil Shock Systems for their impressive handling and ride quality. One customer noted that the adjustable features allowed them to fine-tune their suspension for both daily driving and weekend racing. Another highlighted the ease of installation, making it accessible even for those new to performance upgrades.
Other Part Numbers:
QA1 #qapMD301-08375
⚠ 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: 16.60 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 |
