Front: adj -1.0-1.9" / Rear: -1.0-1.7". Ride height adjustable sport suspension designed for street use with the occasional track event or autocross. No other suspension for the 540i will give you better handling without punishing the ride. Progressive-rate springs with tuned shock absorbers and ride-height adjustability, Everything that you would ever need to properly tune the handling and improve the looks. H&R Coil Over Wrenches included. Available now!