The QA1 Proma Star coil-over shock brings coil-over performance to a wide range of custom chassis and engine-swap suspensions where a direct-fit shock is not available. Single-adjustable valving firms or softens ride quality through an 18-click knob, so the same shock works for street driving, spirited canyon runs, or casual track days. The threaded body and included hardware make ride height quick to set for the desired stance, and a 2.5in coil-over spring in the appropriate length and rate is added separately to complete the assembly. Every Proma Star shock is dyno tested, serialized, and made in the USA, and is eligible for a Limited Lifetime Warranty.
Specifications:
- Series: QA1 Proma Star coil-over shock
- Valving: Single-adjustable, 18-click rebound and compression
- Body: Threaded
- Mounting: Spherical bearing mount, minimizes deflection and allows for misalignment
- Length (collapsed/extended): 11.625in/16.875in
- Spring: Accepts 2.5in ID coil-over spring, sold separately
- Ride height: Adjustable
- Construction: 100 percent dyno tested and serialized, made in the USA
- Warranty: Limited Lifetime
- Part number: DS501
FAQ
Does this shock come with a spring?
No. This is the shock only. A 2.5in inside-diameter coil-over spring in the correct length and rate is purchased separately to build the coil-over assembly.
What does single-adjustable valving do?
A single knob provides 18 clicks of simultaneous rebound and compression adjustment, letting the ride be firmed up for performance driving or softened for a comfortable cruise.
What is the length of the DS501 shock?
The DS501 measures 11.625in/16.875in collapsed to extended from mounting eye to mounting eye. The shock should have enough travel to avoid overextending or bottoming at the desired ride height.
Is the QA1 Proma Star shock covered by a warranty?
Yes. QA1 Proma Star shocks are made in the USA, dyno tested, and eligible for a Limited Lifetime Warranty when registered before installation.
