Bought 18x8 et35 for 01 s4 avant. Any issues?

[nordmoe81]

I'm hearing I need spacers, I'm hearing I dont. What is the widest tire I can go?? Do I need to roll my fenders??
2001 Silver S4 Avant.
Forged Diverters
RS4 Grill
Nuespeed suspension
6000k hid upgrade

[Doc@tirerack]

Normally with that offset you could use 235/35R18 with no issues, but the more common 245/35-18 might need a fender lip roll or inner liner mod.