Originally Posted by Nuke

The stock 17" rims are 8" width. If you go on a site like tirerack and look at tire specs, you'll see what side fits width wise which I believe a 255 is as wide as you can go safely. But then you need to look at how the different 17" tires affect the tires' revs/mile. You can use any of the online calculators to compare and see how much it'll throw your speedometer off.

IMO, the low profile (I consider anything below a 60 series "low profile") tires just begin to look bad with white lettering. However, the white lettering pens seem to hold up fairly well but take some patience to do nicely.

Originally Posted by hogasswild

Stock 17s are actually 17x7 with a 40mm offset.