what are the numbers stamped on Thule fit kit for 318ti I know the 225 is the number on the box that the fit kit comes in, but when you take the clips out of the box, they have a different number stamped on the metal. Anyone know what these numbers are ? seems a lot of people sell thule clips but don't know which car they fit on because the clips are donated or were found unattached to car. thanks, JP |