For starters, I was hoping to get the dimensions of a muffler that will replace stock. In/out size (dont have anything to measure with) as well as the inlet/outled offset location.

I also wanted peoples opinions on mufflers they liked/disliked. I had a 40 series delta flow flowmaster on my 5.9 Ram and loved the sound, but i think its too loud for the kiddie hauler. WOuld like to avoid any drone if possible

 

Magnaflow. Sounds great when you step on it, but not drone while cruising. Not sure what the sizes are for you since I have a whole cat back system.

 

I picked up a cat back off of ebay for $276. Its a Dynaflow and it sounds great. Not loud when at idle and not to loud when you get on it. Easy to instal, bolts right up. No drone when cruising either. Also gave me 2 MPG