QA1 Mod Series Twintube Double Adjustable Shock - 14.88 in Compressed / 23.63 in Extended - 2.00 in OD - Black Anodized M911CL NC002015A or top forced air

or top forced air

Features:Takes the place of 4 electromechanical relaysBuilt-in overcurrent protection

Harmonic Balancer Bolt

forcing fuel to be drawn from other areas of the mat where fuel continues to be available

Royal Purple® Motor Oil is compatible with other mineral and synthetic motor oils

QA1 Mod Series Twintube Double Adjustable Shock - 14.88 in Compressed / 23.63 in Extended - 2.00 in OD - Black Anodized M911CL NC002015A or top forced airDon't be limited to adjustments! Completely re valve in minutes with the MOD Series shock. Designed specifically to meet the demands required by today's high performance drag race and handling pro touring cars, QA1's multi patent pending MOD Series shock will transform the way racers respond to changing track conditions and configurations. The key element to this tunability is QuickTune Technology: dry modular valve packs that can easily be swapped