AST Lowering Springs For BMW 4 420i/428i/430i/420D/425D 03/2014-07/2021, Front 30 , Rear 30 1 smooth bite and reliability

smooth bite and reliability

and it has delivered the reliability our clients expect

Vented vanes improve heat dissipation to help resist fade during fast road driving

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

BMW 4 Series F32 F33 F36 2013-on - 425i

AST Lowering Springs For BMW 4 420i/428i/430i/420D/425D 03/2014-07/2021, Front 30 , Rear 30 1 smooth bite and reliabilityThe 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