The Koni STR.T (Orange) Shock is a rear shock designed specifically for BMW 3 Series (E90) excluding M3 models. This shock is designed to provide a balance between performance and comfort. It features a twin-tube low-pressure gas design, which provides a comfortable ride without sacrificing performance. It also has adjustable damping, allowing you to tune the shock to your specific driving style. Additionally, the shock is orange in color, adding a stylish touch to your ride.