The Koni Special Active Shock 12-16 BMW 328i RWD Front is a performance shock absorber designed specifically for the BMW 328i RWD. It features Koni's patented Frequency Selective Damping technology, which allows for a more comfortable ride while still providing superior handling and cornering performance. The shock absorber is adjustable, allowing for fine-tuning of the suspension to suit any driving style. It also features a unique internal design that helps reduce friction and heat buildup, providing better performance and durability.