The AST 5100 Series 1-Way Coilovers for BMW 5-Series F10 are designed to provide superior performance and handling. The coilovers feature adjustable rebound damping, and are constructed from high-quality materials for long-term durability. The coilovers feature a 1-way design, meaning they are designed to provide a consistent damping force regardless of the direction of travel. The coilovers are also designed to provide a comfortable ride while still offering excellent performance. The kit includes the coilovers and mounting hardware, but does not include front and rear top mounts.