Those would only stick out an inch more than the stock 18s, and if they are the Nitto TGs, they are 34x12" on an 17x8 rim. It would probably be close.
I thought about those, but a bit wide for my OEM 17x7.5s. Don't remember seeing anyone running them though. Maybe you can be the Guinea Pig.
Worst case would probably be losing the front mud guards, and needing
Kartman's pinch-weld-mod