B8 Series Sport Front Driver Side Monotube Strut Cartridge (W0133-1910888-BIL) by Bilstein®. Quantity: 1 per Pack. If you’re looking for a performance lowering shock absorber or strut, the BILSTEIN B8 Sport Series is up to the task. Designed to enhance your car’s lowered suspension, BILSTEIN’s monotube gas pressure technology features delivers a sport ride with remarkable comfort.