hi.could some help me .a mate of mine with a 03 wrx impreza.has had a set of wheels given.and i must admit they are well nice.only thing is the pcd of the wheels is 5x110.and of cause the 03 is 5x100.any way he is a very good engineer and he is keen on fabricating some pcd adapters.billet.and he isn't sure what his limit would be for the thickness of the adaptor ie 15mm 20mm.to clear the wheel arches.any help would be good as he is chewing my ear of.......