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The H&R Sport Spring kit for 2005–2011 Mercedes-Benz SLK280/SLK350/SLK55 AMG R171 applications lowers ride height to refine stance and lower the center of gravity for crisper handling. A progressive spring rate reduces body roll while keeping ride comfort and can marginally improve aerodynamic drag. Made from 54SiCr6 spring steel with shot peening and block-setting, these lightweight, resilient German-built springs are a popular single-part upgrade to improve handling character.
H&R 05-11 Mercedes-Benz SLK280/SLK350/SLK55 AMG R171 Sport Spring
