Sweet!
After you're done hacking it off, don't just start it up and idel or rev it....cause you will think yeah it's a little louder; instead jump in it, drive down the steet and punch it......you'll be like holy $@#% That sound is soooooo awesome.

 

The 6.0 is very quite imo, even with wide open exhaust. Doesn't get real loud until you reach 2500+ rpm. And yes it sounds amazing.

These trucks are loudest when on a performance tune. The decibels get ear shattering.