I have the 4.2, went to muffler guy and had the muffler delete done for $170....Personally i love the sound of the exhaust now, but im not sure that the 5.0 would sound the same.

I also did the resonator delete on the intake, cut all four of them and rewelded them as close to gone as i could, cant say it made much difference over the exhuast, maybe if I did intake first I would have heard difference.