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The AST lowering springs for BMW M4 (March 2014–October 2020) reduce ride height and lower center of gravity while preserving much of the OEM comfort as a direct replacement. Cold‑coiled on Wafios machines and shaped with a progressive profile, they balance a lowered stance with improved handling. Vehicle‑specific fitment, premium materials and a lifetime warranty against breakage back long‑term reliability across many supported models.
AST 03/2014-10/2020 BMW M4 Lowering Springs - 30mm/30mm
