The AST 5100 Series Shock Absorbers Non Coil Over BMW M3 F80 w/ Formed Springs for OE Mounts are shock absorbers specifically designed for BMW M3 F80 vehicles. The shock absorbers feature a unique design that offers superior performance and comfort. The shocks are made with formed springs for OE mounts and feature a 5100 series design that is specifically designed to reduce body roll and improve handling. The shock absorbers are also adjustable for ride height and come with a limited lifetime warranty.