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The AST lowering spring set for BMW 4 built between March 2014 and July 2021 lowers ride height and drops the vehicle’s center of gravity while maintaining much of the OEM ride quality. These vehicle‑specific springs are cold‑coiled on Wafios machines and use a progressive design to balance stance and handling. Supplied as direct OEM replacements, they include a lifetime warranty against breakage and fit thousands of applications.
AST 03/2014-07/2021 BMW 4 Lowering Springs - 40mm/40mm
