I was looking into those awhile back and everybody seemed to be down on those. I still haven't gotten a set of c/c plates only cause there doesn't seem to be any negative tire wear. Oh and I have Eibach sportlines like you.
i just put the 4 bolt c/c from UPR and i'm second guessing myself. These look very similar.
If your stockers don't adjust the alignment to your liken, I would shovel out the dough for the MM's.