Yellow Speed Premium Competition Coilovers for 2004-2011 Mercedes-Benz SLK55 AMG (R171) CT 2007 Lexus IS350 (GSE21)

2007 Lexus IS350 (GSE21)

9kg/mm (166lb/in) rear rated springs Vehicle Fitment

2015 Mercedes-Benz C-Class 2WD (W205)

Transition from Dual to Single Spring Rate for the 2020-2021 Polaris RZR PRO XP 4 Ultimate in utilizing stacked springs

1997 Honda Civic (rear fork)

Yellow Speed Premium Competition Coilovers for 2004-2011 Mercedes-Benz SLK55 AMG (R171) CT 2007 Lexus IS350 (GSE21)Yellow Speed Racing Premium Competition Coilovers for the 2004 2011 Mercedes Benz SLK55 AMG (R171) deliver race ready performance for track day enthusiasts, weekend racers, and club level competitors without sacrificing daily drivability. Featuring inverted front strut technology for increased rigidity and reduced flex, this 1 way damping adjustable system gives drivers precise control over chassis behavior across varied driving conditions. The