StopTech Slotted Sport Rotors are 1-piece direct replacement brake discs for factory brake systems and stock calipers that look great behind your wheels – and offer significantly improved braking performance. The unique slotting aids with heat and brake dust dispersal, prevents glazing of the pads, adds bite and improves wet and dry braking performance. Built to last, the black e-coating provides protection from corrosion and the high carbon metallurgy (in most applications) offers quieter operation, better crack resistance and increased performance. Premium e-coated rotor with advanced metallurgy that greatly reduces pad squeal. Especially effective with higher friction, European style brake pad compounds. Slotted for increased bite, improved looks and better performance 2012 - 2015 BMW 335i, 2013 - 2015 BMW 335i xDrive, 2013 - 2015 BMW ActiveHybrid 3, 2014 - 2015 BMW 335i GT xDrive, 2014 - 2015 BMW 435i, 2014 - 2015 BMW 435i xDrive, 2015 - 2015 BMW 428i, 2015 - 2015 BMW 428i xDrive, 2015 - 2015 BMW 435i Gran Coupe, 2015 - 2015 BMW 435i xDrive Gran Coupe