AST Lowering Springs For BMW 4 M440i xDRIVE 07/2021-, Front 40 , Rear 40 MPERFORMANCEKIT this bumper restores your M3’s

this bumper restores your M3’s original styling

5" in diameter from front to back where it splits into 2x 3" silencers

Material Composition: Copper-free

improved heat resistance

AST Lowering Springs For BMW 4 M440i xDRIVE 07/2021-, Front 40 , Rear 40 MPERFORMANCEKIT this bumper restores your M3’sThe AST Lowering Springs for the BMW 4 M440i xDRIVE (07 2021 ) represent a precise engineering solution designed to enhance vehicle dynamics by lowering the center of gravity without compromising the ride comfort associated with OEM springs. Manufactured using advanced cold coiling techniques on state of the art Wafios machines, these springs deliver consistent quality and durability. Their progressive spring rate ensures an optimal balance between