17x7 BBS RC help

[meforprezz]

I have some 17x7 BBS RC 4x100 on my 325i.

I want to take the BBS caps off and mount the bmw center caps like here:

http://www.brazeauracing.com/bbscenters.htm

However, I got the caps and they are slightly too big so I am sure the center bore must be different.

Does anyone know what the centerbore of these wheels are and what my best option for getting BMW caps in there is.

Thanks.