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.\nBMW 323Ci 2000; 323i 2000-1999; 325Ci 2006-2001; 325i 2005-2001; 328Ci 2000; 328i 2000-1999; 330Ci 2006-2001; 330i 2005-2001\nBMW 323Ci 2000, 323i 2000-1999, 325Ci 2006-2001, 325i 2005-2001, 328Ci 2000, 328i 2000-1999, 330Ci 2006-2001, 330i 2005-2001