As one of the world's largest automotive parts suppliers, our parts are trusted every day by mechanics and vehicle owners worldwide. This Coil Spring Conversion Kit is manufactured and tested to the strictest OE car and truck standards for unparalleled performance. Built for trouble-free ownership and 100% visually inspected and quality tested, this Coil Spring Conversion Kit is backed by our 100% satisfaction guarantee.

Arnott's premium Mercedes-Benz suspension conversion kit C-3271 for the 2007-2013 S-Class (W221 chassis) with AIRMATIC and ADS and without 4MATIC features upgraded luxury dampers. This kit is built with Eibach front and rear monotube sport shock absorbers custom valved for Arnott to provide your vehicle with the comfort and handling S-Class owners expect. Arnott's new design features steel springs made by Eibach in Germany. Arnott also includes a special patented Electronic Bypass Module (EBM) (U.S. Pat. No. 9,329,917) to disarm the Airmatic system and eliminate dash panel error lights.