Hi, my 8J 35mm offset BBS rims just come to the edge of the arches an the front and with 15mm spacers the rears are the same
So I'd say without adaptors they'd stick out at the front and just be OK at the rear and by the time you've added the adaptors they would be well proud of the arches
R
edit: just noticed you don't mention which car you want to fit them to.....just assumed it was a mk4 golf
R