The Koni Sport (Yellow) Shock 99-05 BMW 3 Series - E46 325Xi/ 330Xi Sedan and Touring (AWD) - Rear is a high-performance suspension shock absorber designed to provide superior handling and control for the BMW 3 Series. This shock absorber features a unique design that uses a combination of progressive rate springs and a twin-tube hydraulic system to provide a smooth and comfortable ride. The Koni Sport (Yellow) Shock also features a dust boot to protect the shock from dirt and debris, as well as a corrosion-resistant finish for long-lasting performance. This shock is designed to fit the rear of the BMW 3 Series E46 325Xi/ 330Xi Sedan and Touring (AWD) models.