These are 4X100? Have they been altered? What model Audi did they fit/come off of? The set I have are 4X105 off of the 80's Audi 4000.
Audi made them in both 4x108 and 4x100. AFAIK the 4x100's were used on 4k 4 cylinder cars, the 4x108's used on 5 cylinder cars...go figure. The difference is in the part number.