Power Stop drilled and slotted rotors provide a bolt-on upgrade for improved brake cooling and performance. Precision cross-drilled for maximum cooling and maximum performance during extreme conditions; rounded slots sweep away gasses, dust, and moisture to keep a clean friction contact patch on the rotor surface. Silver zinc dichromate plating resists rust and corrosion. With a direct OE fit, there are no special modifications needed. BMW 335i 2013-2015, BMW 335i GT xDrive 2014-2016, BMW 335i xDrive 2013-2015, BMW 340i 2016-2018, BMW 340i GT xDrive 2017-2019, BMW 340i xDrive 2016-2018, BMW 435i 2014-2016, BMW 435i Gran Coupe 2015-2016, BMW 435i xDrive 2014-2016, BMW 435i xDrive Gran Coupe 2015-2016, BMW 440i 2017-2020, BMW 440i Gran Coupe 2017-2020, BMW 440i xDrive 2017-2020, BMW 440i xDrive Gran Coupe 2017-2020, BMW ActiveHybrid 3 2013-2015