I have a GXP and it already has wider on the front and I don't know how wide I could go - it seems odd to me that it has a reversed staggered set-up anyway and I'm already running 255/45 on the front as it is, At this point I'm just trying to find out options as I won't be doing any changes until these tires need replacing. I do know a tire guy, maybe I'll see if we can test fit a couple and see what happens.