[dgluyas]

Hi Steve !
I have Turbo 944 calipers(same as the s2) all around. The rears are running with non turbo 28mm discs and they work fine , you just need to use spacers to space the caliper so the disc is in the middle of the caliper.It just means the caliper piston pushes out a few extra millimeters. Its no big deal. The fronts I use the 32 mm discs and have had a sleeve made up and pressed onto the stub axle and it works fine. If you do this you will have to use cb dropped spindles and retapp the lower bolt hole for m12 instead of m10 and then face the material on the dropped spindle and tap a new hole in m12 for the upper bolt hole. Its also not that complex . The front track is widened 10mm either side.If you get a good engineer to do it it is safe. Mabye Harrop engineering in Melbourne? I used K@a who do the V8 supercars here in Adelaide.
Cheers David