what's the stock rim size for the EK donuts? i don't have any on my car, but i'm planning on putting the EF donuts on my car, just the front, because i don't want to mess up my current 16s from camber problem because the rim i have on right now is wide. i think it's 16x7. i just need to use the donuts for a month before i get some camber kit. any suggestion would be helpful. thanks in advance.