Someone will hopefully confirm, but I think the GTI and 2.0 TDI have the same front hub, in that they will mount onto the suspension leg correctly.
The 1.9 TDI had a smaller hub, smaller diameter suspension leg, I think.
The only difference to lookout for is the bearing have 3 or 4 mounting bolts, but if you're buying a complete hub, that won't really matter.
Do a bit of googling, but I think you'll be ok with GTI hubs.
Jas