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 550i GT 2010-2015, BMW 550i GT xDrive 2010-2017, BMW 750Li 2009-2015, BMW 750Li xDrive 2010-2015, BMW 750i 2009-2015, BMW 750i xDrive 2010-2015, BMW 760Li 2010-2015, BMW Alpina B7 2011-2015, BMW Alpina B7 xDrive 2011-2015, BMW Alpina B7L 2011-2015, BMW Alpina B7L xDrive 2011-2015