Bilstein B6 Performance dampers are a performance upgrade to OE dampers designed to be paired with the OE factory spring. 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. B6 Performance dampers will provide improved safety and handling performance with the added benefit of world-famous Bilstein quality. 46mm Monotube Shock Absorber Alfa Romeo Berlina 1974-1969; Duetto 1600 1968-1966; Giulia Sprint 1966-1963; GTA 1965; GT Veloce 1974-1970; Montreal 1974-1972; Spider 1994-1969 Alfa Romeo Berlina 1974-1969, Duetto 1600 1968-1966, Giulia Sprint 1966-1963, GTA 1965, GT Veloce 1974-1970, Montreal 1974-1972, Spider 1994-1969