AST Lowering Springs For BMW 4 420i/430i/420D 07/2020-, Front 30 , Rear 30 M240i (F22 & F23)(S) and are fully compatible with

and are fully compatible with both static and dynamic dampers

and reliability for optimising suspension geometry on both road and circuit

Experience a noticeable boost in horsepower and torque

making them suitable for daily driving as well as spirited driving scenarios

BMW 330i xDrive

AST Lowering Springs For BMW 4 420i/430i/420D 07/2020-, Front 30 , Rear 30 M240i (F22 & F23)(S) and are fully compatible withThe AST Lowering Springs for BMW 4 Series models 420i, 430i, and 420D (from 07 2020 onwards) represent a high quality solution engineered to enhance vehicle dynamics by lowering the center of gravity by 30 mm at both the front and rear axles. Manufactured with precision on state of the art Wafios coiling machines, these cold coiled springs maintain a balance between improved handling and ride comfort, ensuring a driving experience that respects the