[Noah930]

What's the offset of those Ruf wheels? Stock was 15 mm on the Fuchs.

Also, the stock set-up already has 28 mm spacers on the rear (under those Fuchs) for later 930s. So if you find that people say they are running 15 mm spacers with the Rufs, see if that's 15 + 28, or just 15 alone. I suppose you could just put on the wheels and see what they look like and if there are any clearance issues. If so, then buy a pair of 15 mm spacers (or 43 mm spacers).