KW Coilover BMW 3 series F34 Gran Turismo 335i, 340i, AWD (x-Drive); with EDC (includes EDC cancellation) - Variant 2KW Variant 2: Sporty and personalized with adjustable rebound dampening. This system is designed for the driver who requires not only determining the individual lowering of their vehicle, but having the ability to adjust the damper settings to fine tune the system to their needs. The adjustable rebound damper allows adjustment of the pitch and roll of the vehicle adapting it to ones own driving preferences. Feature Rebound adjustable damper technology