AST Lowering Springs For BMW 3 4CYL. 2001-02/2005, Front 40 , Rear 30 button assertive look that pairs perfectly

assertive look that pairs perfectly with quad tailpipes and other aero accents

Fits the original factory airbox with no cutting

Suits the BMW four-cylinder N20 turbocharged engine with the factory electronically controlled bypass assembly

S55 upgrade exchange fee

F31 twin exit exhaust trim

AST Lowering Springs For BMW 3 4CYL. 2001-02/2005, Front 40 , Rear 30 button assertive look that pairs perfectlyThe AST Lowering Springs for BMW 3 4CYL (2001 02 2005) represent a meticulously engineered solution designed to enhance your vehicles handling dynamics by lowering the center of gravity. Manufactured using advanced cold coiling technology on the renowned Wafios coiling machines, these springs ensure exceptional precision and durability. Their progressive spring rate design provides a refined balance between improved road grip and ride comfort,