Power Stop Evolution Coated rotors are a direct bolt-on replacement for factory equipment. Fully coated using Genuine GEOMET rust preventative coating; treated with a thin layer of Genuine GEOMET 360 coating to protect against rust and corrosion without influencing the vehicle's braking performance. High Carbon metallurgy provides Improved Thermal Conductivity To Resist Distortion And Cracking; Improved Damping Coefficient To Reduce Squeal. Manufactured to original equipment specifications for fitment, weight, vane count, and performance. BMW 318i 1992-1998, BMW 318is 1992-1998, BMW 323Ci 2000, BMW 323i 1998-2000, BMW 323is 1998-1999, BMW 325i 1992-1995, BMW 325is 1992-1995, BMW 328i 1996-1999, BMW 328is 1996-1999, BMW Z3 1996-2002, BMW Z4 2003-2005