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KW H.A.S. height-adjustable spring kit for Audi A4/S4 (8K/B8) Sedan and A5/S5 lets you change ride height after installation while maintaining factory damper and driver-assist functionality. Tuned spring rates match OE adaptive or regular shocks, and the kit includes chrome-silicon steel springs, application-specific bump stops with dust protection and adjustable perches so you get a sporty look and improved handling without losing electronic features.
KW H.A.S. Audi A4 S4 (8K/B8) Sedan FWD + Quattro; A5 S5
