AST Lowering Springs For BMW 4 M440i xDRIVE 11/2020-, Front 30 , Rear 25 Category_Side Skirts Precise AFR feedback for stable

Precise AFR feedback for stable closed-loop control and consistent drivability

X5 E70 LCI (04/2009 - 06/2013)

Complete set of 4 front differential mount bushes

Reduces chassis flex for flatter

Direct substitute for BMW references: 33322347991 and 33322347990

AST Lowering Springs For BMW 4 M440i xDRIVE 11/2020-, Front 30 , Rear 25 Category_Side Skirts Precise AFR feedback for stableThe AST Lowering Springs for BMW 4 M440i xDRIVE 11 2020 are engineered to enhance your vehicles dynamics by lowering the center of gravity while maintaining a high level of comfort comparable to OEM springs. Manufactured using advanced cold coiling technology on state of the art Wafios machines, these springs ensure precise and consistent quality. Designed specifically for this model, they provide a progressive spring rate that improves handling and