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. BMW 318i 1998-1992; 318is 1997-1992; 323Ci 2000; 323i 2000-1998; 323is 1999-1998; 325Ci 2006-2001; 325i 1995-1992; 325i 2005-2001; 325is 1995-1992; 328Ci 2000; 328i 2000-1996; 328is 1999-1996; 330Ci 2006-2001; 330i 2005-2001 BMW 318i 1998-1992, 318is 1997-1992, 323Ci 2000, 323i 2000-1998, 323is 1999-1998, 325Ci 2006-2001, 325i 1995-1992, 325i 2005-2001, 325is 1995-1992, 328Ci 2000, 328i 2000-1996, 328is 1999-1996, 330Ci 2006-2001, 330i 2005-2001