A drag car needs a shock that reacts the same way on every pass, and one that can be changed between rounds without pulling it off the car. The Proma Star puts all eighteen valving settings behind a single knob, so compression and rebound move together and a change takes seconds rather than a trip back to the trailer.

QA1 DS511 Proma Star Single Adjustable Coil-Over Shock Features:

• Single adjustable with 18 external valving settings that change compression and rebound together.
• 11.625 in. compressed height and 16.875 in. extended height.
• 2 in. body diameter.
• Twin tube design with a threaded aluminum body for spring seat adjustment.
• Valving compensates for high shaft speed while retaining low shaft speed control.
• 5/8 in. centerless ground chrome piston rod.
• Clear anodized finish.
• Designed for use with QA1 coil-over systems.
• Coil spring is not included.
• Sold individually.