AST lowering springs for 2018–present BMW Z4 lower ride height about 25mm front and rear while preserving much of the OEM comfort. They act as direct replacements to reduce center of gravity and improve stance and handling without making the ride overly stiff. Cold‑coiled on Wafios equipment with a progressive rate profile, these vehicle‑specific springs provide balanced handling and are backed by a lifetime warranty against breakage.
AST 11/2018- BMW Z4 Lowering Springs - 25mm/25mm