strange. only time i had a rubbing issue was with the slicks on those +43 VR6 wheels i had. even with 20mm spacers it was still too close to the locking collar of the H&R. so simple solution was just jack the car way up.
ive seen the NB’s take a big wheel without issue. anything 7.5-8inch wide a +35 is usually good to go on the NB/mk4 chassis