Bilstein B8 Damptronic Sprint Dampers are short-stroke monotube shock absorbers designed for use with lowering springs. Their special short stroke design means that they perfectly match lowering springs. Damptronic means these are plug and play with your vehicles factory electronic damping system.Fully compatible with factory electronic damping systemDesigned for lowering springsSporty handling2 year warranty for added peace of mindBilstein B8 Sprint Dampers are specially designed to be used with lowered and uprated springs on lowered vehicles. They are the perfect solution for anyone that wants increased handling capabilities and a sports suspension set up. The shortened dampers provide the optimal balance when combined with lowered sports springs. The legendary Bilstein damping smoothes out bumps for an excellent ride, but gives excellent high speed road holding.Normally to fit this kind of damper, you need to do away with the factory electronic damping system which requires a cancel