The Bilstein B8 shocks and struts are the ideal suspension upgrades for pairing with a lowering spring for added damping performance on the street and track. They are manufactured using Bilstein’s monotube gas pressure technology, which provides optimum braking and tracking stability and increased safety in all driving conditions. The tube of the B8 has a larger diameter and surface that is fabricated using a special extrusion method for superior strength and maximum heat dissipation. And, it is coated with Bilstein’s classic yellow and blue paint to withstand grueling 240-hour salt spray tests and fight rust better for longer shock life. All Bilstein shocks and struts are road-tested and fine-tuned to ensure high reliability under dynamic conditions.