Bilstein B4 2014-2015 BMW 428i/435i Rear Twintube Shock Absorber Exterior Styling>Other Body Components to ensure increased air velocity

to ensure increased air velocity into your air intake system

or partially obstructing passageways depending on throttle position for maximum performance

The optional hand-made Rear Carbon Fibre Diffuser in matte or high gloss is also available to complete the ensemble

A single needle 200 psi gauge with a manual/paddle valve installed with mounting bracket

Bilstein B4 2014-2015 BMW 428i/435i Rear Twintube Shock Absorber Exterior Styling>Other Body Components to ensure increased air velocityBilstein 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.