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QA1 11.125/15" Extended Height Proma Star Double Adjustable
$326.95
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QA1 Proma Star Coil-Overs - DD404

Upgrade your ride with the QA1 Proma Star Coil-Overs, designed to fit a wide variety of vehicles. Whether you're building a custom chassis or enhancing your suspension, these coil-over shocks offer the perfect solution when direct-fit options are hard to find.

Key Features

  • Stroke Length: Available in 3" to 9" options, giving you the flexibility to choose what works best for your setup.
  • Adjustability: Choose between single or double-adjustable valving to tailor your ride comfort and performance.
  • Quick Ride Height Adjustability: The included hardware kit allows for easy adjustments, helping you achieve the ideal stance for your vehicle.
  • Customizable Spring Options: Just add a 2.5" spring of the appropriate length and spring rate to get started.
  • Multiple Mounting Configurations: Options include poly bushing with ’? and 5/8?? sleeves or bearing mounts for optimal performance.

Benefits of Choosing QA1 Proma Star Coil-Overs

These shocks significantly improve ride quality and performance, whether you're cruising the streets or hitting the track. The single-adjustable shocks are perfect for street cars, allowing you to easily adjust the ride stiffness with just one knob. For those who spend more time on the track, the double-adjustable shocks provide independent compression and rebound tuning, ensuring you can fine-tune your setup to suit your driving style.

Specifications

  • Adjustability: Double Adjustable
  • Mounting: Bushing
  • Compressed Height: 11.125 in.
  • Extended Height: 15 in.
  • Recommended Ride Height: 12.5" to 13.5"

For detailed installation instructions, please refer to the Installation Guide.

Important Notes

  • Ensure adequate travel to prevent overextending or bottoming out the shock.
  • Consider using available spanner wrenches and thrust bearings for easier ride height adjustments.
  • If using a stock spring pocket, verify that you can achieve your desired ride height while allowing for sufficient shock travel.

Customer Feedback

Many users have praised the QA1 Proma Star Coil-Overs for their impressive handling and ride quality. One customer noted, "These shocks completely changed how my car handles; it feels more planted and responsive." Another enthusiast shared, "The adjustability is fantastic! I can easily switch from a comfortable ride to a track-ready setup in no time." These testimonials highlight the versatility and performance enhancements that come with QA1's engineering.

Quality Assurance

All QA1 Proma Star shocks are proudly made in the USA and undergo rigorous dyno testing to ensure top-notch performance and quality. Plus, they come with an industry-leading Limited Lifetime Warranty. Be sure to register your shocks at QA1.net/warranty before installation to take advantage of this offer.

Other Part Numbers:
QA1 #qapDD404

Proposition 65

WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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Who is QA1?

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 Experts

The 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 Facility

The 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 Racing

If 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.



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Sale price None
Wholesale price $326.97
Shipping Weight: 4.10
Length: 19
Width: 4
Height: 4
Product Added At Monday 29 January, 2024
Product Modified At Friday 11 July, 2025
Imported By ETLOverride
Last Edited By Turn_API
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Emissions Info
Carb Approved -
Carb Number -
Epa Status N/A
Prop65 Yes
Carb Required -
Vendors
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Vendor Inv Cost Retail Jobber MAP Core Updated
Turn 14 $277.09 $362.21 ? $326.95 ? 2025-07-11 10:44:51

Manufacturer Direct Shipping
This item is available for direct shipping from the manufacturer. Please verify stock availability with the manufacturer. Once confirmed, you can place an order through [Meyer Distributing], who will arrange for dropshipping from the manufacturer directly to our customer.

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