The AST lowering spring set for BMW 4 built between March 2014 and July 2021 lowers ride height and drops the center of gravity while maintaining much of the original ride comfort. Cold‑coiled on Wafios coilers and wound progressively, these vehicle‑specific springs balance a lowered stance and improved handling. Offered as direct OEM replacements, they are backed by a lifetime warranty against breakage and fit thousands of applications.
AST 03/2014-07/2021 BMW 4 Lowering Springs - 40mm/40mm