The Koni Sport (Yellow) Shock 14-15 BMW 228i320i/328i/428i/435i w/ M-Technik - Front is a high-performance shock absorber designed to improve the handling and ride quality of a BMW 228i320i/328i/428i/435i with M-Technik. It features a twin-tube design with a progressive bump stop, allowing for improved damping control and reduced body roll. The shock also features a yellow powder-coated finish for a unique look. It is designed to provide a great balance between comfort and performance, making it an ideal choice for drivers looking for a sporty yet comfortable ride.