KSport Kontrol Pro Coilovers for 2006-2009 Pontiac Solstice RWD M4 16 Kg/mm (457 lbs/in) Spring

16 Kg/mm (457 lbs/in) Spring Rates - Rear Progressive Quantity Full Set (Front & Rear) Vehicle Fitment

designed to maximize the CT9A's Bilstein damper performance on track

2005 BMW 325i 3 Series (E90/E91/E92/E93)

The Swift Spec-R Lowering Springs for the 2008-2013 BMW M3 (E90/E92) bring the legendary E9x M3 closer to the ground for improved aerodynamics and suspension geometry

2010 BMW 7 Series 2WD (w/ Adaptive Drive)

KSport Kontrol Pro Coilovers for 2006-2009 Pontiac Solstice RWD M4 16 Kg/mm (457 lbs/in) SpringThe KSport Kontrol Pro Coilover Kit for the 2006 2009 Pontiac Solstice is built for drivers who want a lower, tighter handling car without sacrificing daily comfort. Whether you're tightening up your commute or chasing a confident feel through back road corners, this kit replaces your Pontiac Solstice's stock suspension with a fully adjustable coilover system you can tune by feel. Dial in ride height from mild to aggressive using the threaded lower