I have Eibach springs and need new shocks. I don't want a rough ride. I was told to go with Bilstein Sport because they are shorter for lowered cars, but understand they are not available for the C240, and they may be too harsh anyway. Was told to go with Bilstein HD, but if they are not shorter I am not solving why I have a problem with my stock shocks. Was told to go with Koni, but which ones are shorter, and are they available for my car? Finally, anyone in the L.A. area that can sell and install them?