Bilstein B4 2011 BMW 323i Base Rear Twintube Shock Absorber Fabrication>Clamps View the 21-687C vehicle applications

View the 21-687C vehicle applications to determine the legal status for each vehicle

Exhaust Valve: This axle-back exhaust system incorporates a factory style exhaust valve which uses the factory exhaust valve motor (not included)

NRG Shift Knob Heat Sink Droplet Red

-ft of torque without a retune

Bilstein B4 2011 BMW 323i Base Rear Twintube Shock Absorber Fabrication>Clamps View the 21-687C vehicle applicationsBilstein 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.