Our BMW Differential Bushings are designed for the street and the track. We use UHMW in all our suspension bushings because it is stiff, has almost zero deflection yet also absorbs some vibration. It will outlast other types of rubber or urethane bushings. With our solid diff bushings, you won't have to worry about any more rubbery flex in your diff mounts during hard acceleration. This item fits: 2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi 335d 335i 335xi 335i xDrive - Sedan 2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon 2007-2013 E92 BMW 328i 328xi 328i xDrive 335i 335is 335xi 335i xDrive - Coupe 2007-2013 E93 BMW 328i 335i - Convertible 2012+ F30 BMW 320i 320iX 328i 328iX 335i 335iX - Sedan 2012+ F31 BMW 328i 328iX - Wagon 2014+ F34 BMW 328i 328iX 335iX - Gran Turismo 2014+ F32 BMW 428i 428iX 435i 435iX - Coupe 2014+ F33 BMW 428i 428iX 435i 435iX - Convertible Kit includes a 3 differential bushings.