The QA1 Proma Star Series coil-over shock absorber brings coil-over performance to a wide range of custom chassis and suspension builds where a direct-fit shock is not available. This double adjustable model uses a bearing mount and measures 11.625in collapsed and 16.875in extended. Independent compression and rebound adjustment let the shock move from the street to the drag strip or road course. The bearing mount minimizes deflection and works well where the mounts require misalignment. The included hardware kit allows quick ride height adjustment, and the shock accepts a 2.5in diameter coil-over spring in the appropriate length and rate, sold separately. Each unit is machined from aluminum, dyno tested, serialized, and built in the USA.
Specifications:
- Series: QA1 Proma Star coil-over
- Double adjustable with independent compression and rebound tuning
- Bearing mount to minimize deflection and allow misalignment
- Collapsed length: 11.625in
- Extended length: 16.875in
- Accepts a 2.5in diameter coil-over spring (sold separately)
- Aluminum body, dyno tested and serialized
- Made in the USA
- Limited Lifetime Warranty (register at QA1.net/warranty before installation)
- Part number: DD501
FAQ
What spring does the QA1 Proma Star coil-over use?
It accepts a 2.5in diameter coil-over spring in the length and rate suited to the application. The spring is sold separately.
What are the collapsed and extended lengths of part DD501?
This model measures 11.625in collapsed and 16.875in extended.
What is the difference between the single and double adjustable versions?
Double adjustable shocks tune compression and rebound independently for precise control, while single adjustable shocks tune both together with one adjuster for a simpler setup.
Is the QA1 Proma Star shock covered by a warranty?
Yes. It is eligible for an industry-leading Limited Lifetime Warranty. Register the shock at QA1.net/warranty before installation.
