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AST lowering springs for 2009–2018 BMW Z4 lower the front by 30mm and the rear by 25mm while preserving much of the factory ride comfort. As direct OEM replacements they reduce center of gravity and refine stance and handling without harshness. Cold‑coiled on Wafios machines and built with a progressive rate profile, these vehicle‑specific springs provide balanced handling and carry a lifetime warranty against breakage.
AST 04/2009-01/2018 BMW Z4 Lowering Springs - 30mm/25mm
