I ordered a set of Eibach pro kit lowering springs on line and was shipped the spring set for the rwd sedan, part number 6390.140 and I know that it will not work on my X sedan, I was looking around their website and they have a set that work on the X coupe. I called them and they said that those spring have not been tested on the X sedan, before I do an exchange for the other springs, part number 6394.140, does any one know from experience if the springs for the X coupe will work on the X sedan?