Bilstein B6 Performance Shocks & Struts BMW M4 (15 20) w Electronic S Bilstein #35 171676 B6 Performance Suspension Strut Assembly Bilstein 35 122074 B6 Performance Suspension Strut Assembly 35 197195 Bilstein Front Right Series B6 Performance Strut Assembly. Bilstein B6 Performance Dampers for the 2014 2016 BMW 428i 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. Standard Features Bilstein gas pressure technology Optimum grip and enhanced lane stability in day to day and extreme situations Improved safety and performance without the requirement of new springs (use of series spring possible) Specifications Part Number 35 264583 Part Name Strut Assembly Vehicle 2014 2016 BMW 428i UPC 651860787053 Boot Included No Finish Yellow Paint Internal Design Monotube Lower Mount Type Base Cup Segment Tuning Series B6 Performance Spring Seat Included Yes Fixed Upper Mount Type Stem Notes Without Electronic Suspension Vehicle Fitment 2014 BMW 428i 2015 BMW 428i 2016 BMW 428i