I've always had a straight pipe out the back with just a cat on the truck..it doesn't annoy me and sounds quiet to me..but then again I'm not 52 years old
![Big Thumb Up :biggthumpup:](https://board.marlincrawler.com/Smileys/marlin/biggthumpup.gif)
I'd think it'd be fairly quiet with a Flow 60..worst case you can add a small resonator like a 10" one after to quiet the "tone" down and mellow it to a smoother tone.