I have a 1996 Audi A4quattro. My question is, if the original wheel offset was 45mm, what would the new offset have to be with a Big Red brake upgrade? My choices are: 56.7mm w/6.23 inch backspacing 44.0mm w/5.73 inch backspacing or 18.6mm w/5.23 inch backspacing Thanks all, Kevin D. Caldwell