For those who demand the absolute best performance of driving your car-then coilovers are for you. The latest damping technology allows the suspension to be made either stiffer or softer depending on the driving conditions. This damping adjustment is made on the upper end of the piston rod allowing the setup to be changed almost instantly. The car will feel more comfortable when on the move. Horsepower Direct carries KW Suspension, ST, Suspension, Solo-Werks, Bilstein, Vogtland and more.