Good to hear. I have had a few straight piped vehicles so I should be fine.The Dynomax part fits both the 3.6 and the 2.0.
My son and I put one on our 2.0 JLUR one week ago. The cold start is loud like others say, but does mellow out nicely,
Ours does not drone at all, which is what I was worried about. Years ago I had made my own high clearance system for my TJ and it droned like crazy, I hated driving it on the highway.
I do not think it is overly loud, you can still have conversations, talk on the phone, etc. while driving. When you get on the throttle, you will hear the exhaust, but it is a nice aggressive sound.
I really like the weight savings and ground clearance.