It sounds inicredible, Az!! I have the Hemi with a K&N cai and I love it!! Not too loud, and not too quiet. I can't wake the kids in the morning when I leave the garage, so 22" was perfect for me. You can hear it nicely when you stand on the throttle, but still not too loud. Perfect for me.
did you just change the muffler or do a CAT back? Also did you have the dual exhaust? If so did you leave the resonators?
If i can kill it with an arrow, I'll eat it.