AST Lowering Springs For BMW 4 xDRIVE 430D xDRIVE 03/2021-, Front 30 , Rear 30 JR31 The bar and plate construction

The bar and plate construction further enhances strength and thermal performance

Each 500ml bottle is filled with nitrogen to eliminate contamination and extend shelf life while factory sealed

Model years: 10/2007 to 11/2013

Magnetic design traps harmful ferrous particles to reduce long-term engine wear

Mini Cooper R53 S JCW (2003-2006)

AST Lowering Springs For BMW 4 xDRIVE 430D xDRIVE 03/2021-, Front 30 , Rear 30 JR31 The bar and plate constructionThe AST Lowering Springs for BMW 4 xDRIVE 430D xDRIVE 03 2021 represent a meticulously engineered solution designed to enhance vehicle dynamics by lowering the center of gravity without compromising ride comfort. Manufactured using advanced cold coiling technology on state of the art Wafios machines, these springs ensure exceptional precision and durability. Their progressive design optimizes suspension performance, providing improved handling and