hey everyone. I have an '06 cummins. i want to do something with the exhaust. i want to get a little better sound and mileage. i had thought about just deleting the muffler (but not change anything else). i had also thought about rolling out a hollow "muffler" and putting it up in there. but right now i don't have the time to make my own. i have also heard some people don't like the drone with that. any ideas on a fairly inexpensive muffler that will make the truck sound nice and maybe help the mileage? I would kind of like to just clamp in a muffler if possible. i guess i should add a note that i have an AFE intake, if that changes the sound part any.