Bilstein B8 Performance Plus dampers are a performance upgrade to OE dampers designed to be paired with aftermarket lowering springs. These dampers offer application specific valve settings with a monotube design to bring out the best handling performance of a vehicle. Each damper is rigorously tested for quality that meets or exceeds OE standards. B8 Performance Plus dampers are the ideal solution for pairing with a lowering spring for improved handling and sportier look with the added benefit of world-famous Bilstein quality. Mercedes-Benz 300SD 1985-1981; 300SDL 1987-1986; 300SE 1991-1988; 300SEL 1991-1988; 350SD 1991; 350SDL 1991-1990; 380SE 1985-1984; 380SEC 1983-1982; 380SEL 1983-1981; 420SEL 1991-1986; 500SEC 1985-1984; 500SEL 1985-1984; 560SEC 1991-1986; 560SEL 1991-1986 Mercedes-Benz 300SD 1985-1981, 300SDL 1987-1986, 300SE 1991-1988, 300SEL 1991-1988, 350SD 1991, 350SDL 1991-1990, 380SE 1985-1984, 380SEC 1983-1982, 380SEL 1983-1981, 420SEL 1991-1986, 500SEC 1985-1984, 500SEL 1985-1984, 560SEC 1991-1986, 560SEL 1991-1986