These Balanced Brake Upgrades(R) 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. 2001 - 2006 BMW M3