AST Lowering Springs For BMW 4 420i/430i/420D 07/2021-, Front 25 , Rear 20 E81 120i 5 mm pipe diameter (2

5 mm pipe diameter (2

the B6 front right delivers immediate improvements in stability

high bite rear brake pads

Lower thermal load on the turbocharger

impact resistant and subtly flexible

AST Lowering Springs For BMW 4 420i/430i/420D 07/2021-, Front 25 , Rear 20 E81 120i 5 mm pipe diameter (2The AST Lowering Springs for BMW 4 420i 430i 420D 07 2021 represent a meticulously engineered solution designed to enhance vehicle dynamics by lowering the center of gravity while maintaining a high level of ride comfort. Manufactured with precision on advanced Wafios coiling machines, these cold coiled springs ensure consistent quality and durability, adhering to the rigorous standards expected in automotive performance components. These lowering