BILSTEIN Passenger Side Monotube Smooth Body Shock Absorber

B8 5125 Series Driver or Passenger Side Monotube Smooth Body Shock Absorber (33-187112) by Bilstein. Quantity: 1 per Pack. The 5125 Series offers Bilstein technology for custom lifted applications. 5125 Series shocks feature Bilstein’s superior single tube high gas pressure design for the upmost in consistent fade-free performance and long life. Gas Pressure Technology. Over time, the mono-tube gas pressure technology developed by BILSTEIN has established itself as a standard in automotive construction. This technology involves keeping the oil in the absorber under pressure, which prevents it from foaming when temperatures and loads are increasing. As a result, full damping power is retained even when the system is placed under extreme stress, a feature that can be observed in the self-lowering piston. Mono-tube Upside-Down Technology.