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The H&R Sport Spring kit for 2006–2008 BMW Z4 M Coupe and Z4 M Roadster (M85) lowers ride height to tighten fender gaps, reduce body roll and sharpen handling for a more engaging driving experience and refined look. These springs use shot‑peened 54SiCr6 steel and a progressive rate design to balance comfort and control while remaining lightweight and resilient; the kit is manufactured in Germany.
H&R 06-08 BMW Z4 M Coupe/Z4 M Roadster M85 Sport Spring
