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The AST lowering springs for BMW 4 (from July 2021) lower the vehicle's center of gravity while preserving much of the OEM ride comfort as a direct replacement. Cold‑coiled on Wafios machines with a progressive spring profile, they balance a lowered stance with improved handling. Vehicle‑specific fitment, premium materials and a lifetime warranty against breakage deliver durable long‑term performance and coverage across many supported models.
AST 07/2021- BMW 4 Lowering Springs - 35mm/30mm
