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The AST lowering spring set for BMW 4 built from July 2013 through October 2020 lowers ride height and reduces center of gravity while maintaining much of OEM comfort. These vehicle‑specific springs are cold‑coiled on Wafios coilers and employ a progressive design to balance stance and handling at lowered height. Supplied as direct OEM replacements, they include a lifetime warranty against breakage and suit thousands of applications.
AST 07/2013-10/2020 BMW 4 Lowering Springs - 40mm/40mm
