These Balanced Brake Upgrades® put StopTech on the enthusiast map. They maintain factory bias while providing shorter stopping distances, better modulation and less brake fade. They include stiffer StopTech calipers, larger-than-stock 2-pc StopTech AeroRotors, StopTech Street Performance Pads and StopTech Stainless Steel Lines. Feature fully forged calipers with patented stiffening bridges, patented 2-piece AeroRotors for optimized cooling, braided stainless steel brake lines, performance brake pads, mounting brackets & all necessary hardware to complete install. Feature fully forged calipers with patented stiffening bridges; patented 2-piece AeroRotors for optimized cooling; braided stainless steel brake lines; performance brake pads; mounting brackets/all necessary hardware to complete install. 1991 - 1991 BMW 325iX, 1991 - 1995 BMW 325is, 1991 - 2005 BMW 325i, 1995 - 1999 BMW 318ti, 1996 - 1998 BMW 318i, 1996 - 1998 BMW 318is, 1996 - 1999 BMW 328is, 1996 - 2000 BMW 328i, 1996 - 2002 BMW Z3, 1997 - 2000 BMW 323i, 1998 - 1999 BMW 323is, 2000 - 2000 BMW 323Ci, 2000 - 2000 BMW 328Ci, 2001 - 2006 BMW 325Ci, 2003 - 2008 BMW Z4