I know everyones money is hard earned these days, so I just wanted to recommend an exhaust setup. I have an 07 5.9 2500 with gutted kitty,5 inch silverline tip and had an aftermarket flow through muffler installed. Its similar to MBRP design, just like an old cherry bomb. I can get manufacturer details if I need to. Let me say.WOW I love it. At idle ,sounds stock, but put a load on it and it TALKS. I would highly reccomend for everyone thinking about straight pipe,but unsure.