AST Suspension Lowering Springs - BMW 4-Series (07/2013-10/2020) Select Drop (F/R):40mm/40mm Allows the transmission to move

Allows the transmission to move which gives the feeling of a sloppy drivetrain

providing a reliable solution for those seeking enhanced engine sound and responsiveness

The Bilstein B4 OE Replacement Suspension Strut Assemblies feature a robust monotube design that ensures consistent damping performance and excellent heat dissipation

One K&N Engineering Replacement Drop-In Air Filter (E-3495)

The durable coating not only adds to the visual appeal but also extends the lifespan of the lug nuts by protecting against rust and corrosion

AST Suspension Lowering Springs - BMW 4-Series (07/2013-10/2020) Select Drop (F/R):40mm/40mm Allows the transmission to moveAST Suspension Lowering Springs Part #: ASTLS 21 034 Overview The AST Suspension Lowering Springs are designed to enhance the handling and aesthetics of your BMW 4 Series models from 2013 to 2020. Crafted for enthusiasts seeking a sportier stance and improved road feedback, these springs provide a balanced combination of performance and style. They are ideal for drivers looking to lower their vehicles center of gravity, resulting in sharper cornering,