Bilstein B6 Performance dampers are a performance upgrade to OE dampers designed to be paired with the OE factory spring. These dampers offer application specific valve settings with a monotube design to bring out the best handling performance of a vehicle. Each damper is rigorously tested for quality that meets or exceeds OE standards. B6 Performance dampers will provide improved safety and handling performance with the added benefit of world-famous Bilstein quality. 36mm Monotube Strut Assembly Coming Soon BMW 228i xDrive 2016-2015; 230i xDrive 2017; 320i xDrive 2018-2013; 328d xDrive 2018-2014; 328i GT xDrive 2016-2014; 328i xDrive 2016-2013; 330i GT xDrive 2019-2017; 330i xDrive 2019-2017; 335i GT xDrive 2016-2014; 335i xDrive 2015-2013; 340i GT xDrive 2019-2017; 340i xDrive 2018-2016; 428i xDrive 2016-2014; 428i xDrive Gran Coupe 2016-2015; 430i xDrive 2019-2017; 430i xDrive Gran Coupe 2019-2017; 435i xDrive 2016-2014; 435i xDrive Gran Coupe 2016-2015; 440i xDrive 2019-2017; 440i xDrive Gran Coupe 2019-2017