I was wondering what the biggest tires you can put on a stock 2003 X without it rubbing while offroading. Also, what are the largest wheels you can add. Thanks

Since I don't have a first gen, I don't know for sure about the tire size. I seem to think that it's 31's.

As for the wheels, do you want wider or larger around? I mean you can put 20's on the X if you go with low profile tires. If you are talking width, you can go very wide, but then it would depend on the off set and how much you want them to stick out.

Personally if you are wheeling, I would stick with a set of 15x8's.