Brand: QA1 Precision Products Inc
Proma Star QA1 Double Adjustable Shock
QA1 Proma Star Double Adjustable Shock features adjustable valving and stroke options.
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Why shop with us
Proma Star QA1 Double Adjustable Shock
QA1's Proma Star Coil-Overs allow you to gain the benefits of coil-over shocks across a wide range of vehicles.
Building a custom chassis or suspension components?
Can't find direct-fit options for your vehicle?
These are for you.
Available with stroke lengths from 3" to 9" and single- or double-adjustable valving, QA1 shocks upgrade ride quality and performance instantly.
The shock and included hardware kit offer quick and easy ride height adjustability to achieve the perfect stance.
Just add a 2.5" spring of the appropriate length and spring rate to get rolling.
Choose from single- or double-adjustable valving to dial in ride comfort and performance.
Single-adjustable shocks work well for street cars, softening or stiffening the overall ride with one knob.
Double-adjustable shocks are ideal for cars that see consistent track time or drivers who want to fine-tune their ride quality.
Independent compression and rebound calibrating make this shock equally suitable for the street, drag strip, and road course.
Choose from multiple mounting configurations.
The poly bushing option includes ½" and 5/8" sleeves while helping to reduce NVH.
Bearing mount shocks minimize deflection and work well if your mounts require misalignment.
Other mounting styles are available (sold separately) for T-Bar and stud-mount applications.
Extended eyelets can also be used.
All QA1 Proma Star shocks are made in the USA and dyno tested to ensure performance and quality.
They are eligible for an industry-leading Limited Lifetime warranty.
Register shocks at QA1.net/ before installation.
Fitment Notes, Ensure your shock will have an adequate amount of travel to avoid overextending or bottoming out the shock.
Available spanner wrenches and thrust bearings increase ease of ride height adjustment.
If using a stock spring pocket, ensure you can achieve your desired ride height while incorporating enough shock travel.
Key Features
Specifications
- Length
- 19.0 lb
- Width
- 3.75 lb
- Height
- 3.5 lb
- Weight
- 3.78 lb
- ASIN
- B00GKGG5IO
- UPC
- 806990059741
- Ships From
- United States
- Brand
- QA1 Precision Products Inc
Frequently Asked Questions
About Proma Star QA1 Double Adjustable Shock
01 What type of shock is the QA1 DD402?
The QA1 DD402 is a Double Adjustable Shock.
02 What materials are used in the construction of the QA1 DD402?
The construction includes precision machined aluminum and a piston with PTFE.
03 What features does the QA1 DD402 offer?
The QA1 DD402 offers independent compression and rebound adjustment, coil-over design, and ride height adjustability.
04 What is the ASIN for this product?
The ASIN for this product is B00GKGG5IO.
05 What is the UPC / barcode for this product?
The UPC/barcode for this product is 806990059741.
06 Where does this ship from?
Orders ship from our fulfillment center in Dover, Delaware, USA.
07 How many days will it take to arrive?
Orders ship within 1-2 business days and typically arrive within 4-5 business days via free standard shipping -- usually by Nov 17.
08 Does this product accept returns?
Yes -- this item can be returned within 15 days of delivery for a free return by mail. See our return policy for full details.






