Just got back home after a 2400 mile plus ride from Vegas. While it's not totally quite, it doesn't have quite the noise/feedback I would like.
I'm sure there are post entries that address this concern, but not sure which ones. Can I get some input as to (true duals and/or muffler swaps) or other changes that might make my ride have a little more "bark".
What year do you have. Exhaust systems on 03 and 04 are different then 05 and 06. I have an 05.
Here is what I did. Went to a shop called Exhaust Pro's and had the Y pipe on mine split into individual pipes from the manifold through the cats into a Magnaflow stainless X type muffler. Two pipes in and two pipes out and used stock tail pipes. Throaty purr going down the road, no drone or vibration. Very close to true duals. When you stand on it the X muffler really extracts the exhaust and it hauls. You get the full power and sets you back in the seat. Remarkable difference from stock. Sounds and seems much faster.
P.S. Mike from Simple Engineering, Arizona and a couple others helped me work this out. Recently I had the 5 inch Tips from Mike installed. Works and sounds perfect to me.
My experience is stay away from short mufflers and most FloMasters. They are loud and vibrate the whole truck at constant highway speed. Several folks have eliminated the muffler altogether and just run the catalytic converters. Others leave it sort of stock and run an electronic straight pipe cut out if you want to get on it.
Might also contact a local speed shop/custom exhaust shop and see what they suggest. Can be found in your local phone book or on the internet. Good luck.
Like I said to each his or her own. God bless and good luck.