QA1 63 Series Shock 9in Rear 5C/3R 6395-3

If you're running a late model or modified on the track, shock performance directly impacts your lap times and driver confidence through transitions. The QA1 63 Series delivers consistent damping across varying grip conditions—especially when the track gets slippery—thanks to its proven twin-tube design and deflective disc valving. Built as a sealed, non-rebuildable spec shock, it eliminates fade and delivers 100% dyno-tested reliability, lap after lap.

The 63 Series excels in coil-over setups on both dirt and asphalt, with a lightweight 2-inch aluminum body that can be oriented in any direction without affecting your spring rate. This flexibility, combined with ACT legal certification and USA manufacturing, makes it the go-to choice for serious racers who demand consistency without compromise.

• Twin-tube design
• 5-3 valve configuration
• Linear damping
• 2.00" OD aluminum body
• 15.38" compressed length
• 24.30" extended length
• Threaded adjuster
• Sealed, non-rebuildable
• Deflective disc valving
• Multi-orientation capable
• 100% dyno tested
• Serialized unit
• Non-fading performance
• USA manufactured
• ACT legal
• Rear application
• Sold individually