I am looking at purchasing a 2011 wrangler Sahara and was wondering what is the largest tire size I can put on it without having to get it lifted? I do believe it comes stock with 18 inch rims. The function of the tires will mainly be for looks and some very mild off roading. I really don't want to have to purchase new rims as well. Down the line I would plan on getting it lifted 3 inches again just mainly for looks. I am a total noob so please go easy. Any help will be greatly appreciated. Opinions and Ideas are strongly encouraged as well as pic.