The Bilstein B12 1998 BMW 328is Base Front and Rear Suspension Kit is a high-performance suspension system designed to provide superior handling and stability for your BMW 328is. This kit includes two front shocks, two rear shocks, and all the necessary mounting hardware. The shocks are made from monotube gas pressure technology and feature a 10-stage variable damping system, allowing for a wide range of adjustable settings to suit your driving style. This kit is designed to provide improved handling, better control, and improved ride comfort. It also helps reduce body roll and cornering forces, making your BMW 328is more responsive and agile.