The AST 2018+ BMW 3 Series - G20/G21 5100 Comp Series Coilovers are a high-performance suspension system designed to provide superior handling and stability for your BMW 3 Series. The 5100 Comp Series Coilovers feature adjustable dampers with a wide range of settings, allowing you to customize your ride to your exact needs. The adjustable ride height allows you to lower your vehicle for a sportier look and improved handling. The 5100 Comp Series Coilovers also feature a unique progressive spring rate that provides a comfortable and responsive ride, while also reducing body roll and improving cornering performance. For the ultimate in performance and adjustability, the AST 2018+ BMW 3 Series - G20/G21 5100 Comp Series Coilovers are the perfect choice.