Could you be more specific?
I think there's several generations of the "CV-Pro" model.
It looks like there are several different center caps that are used.
Dunno if they are interchangeable?
http://www.google.com/search?q=volk+...w=1237&bih=646
I think in the older models, all the "Group-C" variants center caps are interchangeable...
-Ted