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The H&R Sport Spring kit for 2004–2006 MCC Smart Forfour (454) lowers ride height to tighten fender gaps and improve handling responsiveness. H&R's progressive spring rate reduces body roll while maintaining a comfortable ride. Built from shot-peened 54SiCr6 spring steel in Germany, these lightweight springs are a top-selling choice to refine stance and help reduce wind resistance for slightly better fuel economy.
H&R 04-06 MCC Smart Forfour 454 Sport Spring
