D2 CIRCUIT Series coilovers are designed for the circuit track enthusiast determined to go fast. Increased spring rates with more aggressively valved dampers and a larger, heavy-duty piston construction result in a suspension system that out-performs its competition. Large 52mm shock bodies ...

D2 PRO Series lowering springs optimize and improve handling characteristics by offering a reduction in ride height while maintaining exceptional ride quality through the use of a progressive rate spring. All of our springs come with a Lifetime Warranty and are manufactured of 55 chrome silicon ...

The RS Series suspension kit is our most popular coilover. Featuring a 36-way damping and rebound adjustable monotube design, RS Series coilovers are perfect for the modified street car that also sees occasional track days. This coilover has separate height and preload adjustments allowing for ...