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AST lowering springs for 2012–2019 BMW 3 Series Sedan (F30) lower ride height by approximately 40mm front and rear while aiming to retain much of the OEM comfort. Cold-coiled on Wafios coiling machines, the progressive-rate springs are crafted as vehicle-specific direct replacements. They reduce center of gravity for improved handling balance and are backed by a lifetime warranty against breakage.
AST Suspension 12-19 BMW 3 Series Sedan (F30) Lowering Springs 40mm/40mm
