Responses are all over the map.
Some 215/45/17 don't rub, some do.
Some say 225/45/17 are fine, others say no way (they rub easily).
Some say 235/40/17 are too wide for stock rim, others disagree.
Some say 225/40/17 will fit and not rub.
Is the tire brand making the difference?
If so, what is good tire to prevent rubbing for these sizes?
The real question you should be asking is: have the folks telling you something doesnt work actually done it? When several people tell you 'Im doing X and it works fine' and then a couple of people say 'thats wrong, there is no way that could work'... I know who I would believe.
This goes for pretty much any mod on the car. A lot of us got told, in no uncertain terms that the things we had already done to our cars would
1) Never work
2) Wouldnt make a diffrence
3) were totally dumb and there was a better way to do it.
A good rule of thumb: If someone hasn't actually tried a change, and cant provide a solid answer besides 'no', have a lot of doubt. ESP when you have other folks raising thier hands saying 'oh yea, that works fine, I did it on my car, no problem'