KONI Threaded Suspension Kits -1150 series includes four KONI Sport valved struts and/or shocks featuring threaded adjustable lower spring perches (where applicable) and progressive rate lowering springs designed for performance strret driving. The kits are engineered in a joint effort with KONI divisions in Holland, Germany and North America and are rested on Germanys famed, high speed, Autobahns. The kits were designed to give the vehicle a preferred ride height of 1.5 to 2.0 below stock ride height but the threading range to go considerably higher and lower.