AST Lowering Springs For BMW 4 420i/428i/430i/420D/425D 03/2014-07/2021, Front 30 , Rear 30 1 The kit includes the electronic

The kit includes the electronic damper cancellation module for cars with factory adaptive dampers

smooth bite and reliability

and optimises stability to get the improved driving experience

rear wheel knuckle bearing conversion

Smooth-flowing pipework for improved response and enhanced drivability

AST Lowering Springs For BMW 4 420i/428i/430i/420D/425D 03/2014-07/2021, Front 30 , Rear 30 1 The kit includes the electronicThe AST Lowering Springs are precision engineered to enhance your BMW 4 Series driving experience by lowering the vehicles center of gravity while maintaining a high level of comfort comparable to the original equipment manufacturer (OEM) springs. Manufactured using state of the art Wafios coiling machines, these springs are cold coiled to ensure optimal durability and performance. Their progressive design allows for a balanced reduction in ride