Serie production spring seat must be used! Bilstein b4 OEM (original equipment manufacturer) replacement shock absorber for your Porsche with standard suspension. The b4 damper from bilstein is the perfect replacement for your Porsche. Facts: - constant damping power under any load - high power reserves for maximum safety - ride like it 's the first time, every time - OEM quality - bilstein gas pressure technology

This item may need to be sourced from Germany and would take 2-4 weeks to arrive. Once ordered it cannot be canceled. Please call to check stock or request expedited shipping.