[993innc]

I went back and re read your post and looked at that site again......I get it now! So the shims force the lower arm out (how you get increased camber), while allowing for the other arms to remain the same length as stock by way of that multi holed center point (and I'm assuming that center puck rotates?). Or if not, you get a couple of different dimensioned mounting holes. Great looking product. Seems rather strongly priced for an occasional car. Looks like it almost forces on to get the adjustable toe links etc......where does it end :-D
It seems the Spec racing guys can't use these parts though per the rules, so do they just get whatever they get by lowering and squeaking out whatever is allowed by the factory parts?