i just put on a set of 95 cobra r wheels 17s and i have a set of center caps from factory bullitt wheels but when i put them in they stick out really far and i the grey plastic can still be see on the back of the center cap its to big to fit in the hole hahaha, i looked on americian muscle they have lage and small center caps but in small they only have 2 styles. do i just need to buy the small ones or is that just how they fit?