Bilstein B4 2014-2015 BMW 428i/435i Rear Twintube Shock Absorber Exterior Styling>Other Body Components ID 6061 T6 Aircraft Grade

ID 6061 T6 Aircraft Grade Billet Aluminum

and layers of high flow cotton gauze

the included aluminum heat shield bolts to the bumper (via factory mounting locations) and resides neatly behind the exhaust

Adjustable base pressure from 75-125 PSI with the optional spring included

The factory unit contains a fairly large straight through resonator

Bilstein B4 2014-2015 BMW 428i/435i Rear Twintube Shock Absorber Exterior Styling>Other Body Components ID 6061 T6 Aircraft GradeBilstein B4 OE Replacement dampers are specifically engineered to be the best choice for maintaining the original ride quality of your vehicle, while meeting or exceeding OE standards. These dampers are the ideal choice for the driver looking to restore the original performance and handling of their vehicle, with the added benefit of world famous Bilstein quality.