I bought my IS-F with the tire and wheels package my dealership offered here, which gives me free tires lifetime. My car came with bridgestone Potenza tires, but I heard some ISF's come with the Michelin PS2's stock, is that correct? If yes do you think the I can get the PS2's from the dealer next time, and possibly wider tires like some have already put on.(265 or 275 in the back).