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. Mercedes-Benz C32 AMG 2002-2004, Mercedes-Benz C55 AMG 2005-2006, Mercedes-Benz CLK500 2003-2006, Mercedes-Benz CLK55 AMG 2003-2004, Mercedes-Benz CLK550 2007-2009, Mercedes-Benz SLK55 AMG 2005-2008