4x108 to 5x112 conversion: B4 80 Quattro ABC V6 Sedan - What discs?

[pfi]

For 5x112, simplest solution :
G60 calipers and 276x25 vented disks (895615301D), easy to get hold of and pretty cheap

[M2ki]

Or if you can't find the Girling 60, use B5, C5 calipers and diesel Sharan, Galaxy, Alahambra discs. No drilling, no shimming etc.