I'm a little behind on my digest readings, so this may have been answered already, but the offset of the stock 4kq wheels (14x6 w/ 4 x 108mm bolt) is 45mm. I think (without much knowledge to back it up) that the offset should remain the same when going to a larger wheel. -- Jack Rich 84 4000S Quattro 88 Corvette convertible 90 V8 Quattro