If you are talking about the "skirts" inside the wheel wells... yes, you can heat them up and mold them just a bit. The rear wheel well is where the size limitation will be hit - I don't think that skirt has any give in it.

If you are unimpressed with the 05, you need to give them another try... really, its amazing what they have done. Fix the rear leafs (with a nice 5" lift), give me an extra set of rims that fit for my Goodyear MT/Rs... and I think you will be very impressed.