AST Lowering Springs For BMW 4 435i/440i/430D 03/2014-07/2021, Front 40 , Rear 40 r56 rear braking system upgrade X5

rear braking system upgrade X5

This motorsport-style clutch kit is engineered to cope with heat and repeated hard launches

repeatable characteristics under prolonged heat

trimming unsprung mass to improve steering feel

this performance-focused spring and damper package delivers crisp turn-in

AST Lowering Springs For BMW 4 435i/440i/430D 03/2014-07/2021, Front 40 , Rear 40 r56 rear braking system upgrade X5The AST Lowering Springs for BMW 4 Series models 435i, 440i, and 430D (manufactured between 03 2014 and 07 2021) represent a meticulously engineered solution designed to enhance your vehicles driving dynamics by lowering its center of gravity. Manufactured with precision on advanced Wafios coiling machines, these springs are cold coiled to ensure optimal strength and durability. The set includes front and rear springs, each providing a 40 mm lowering