Yup, I looked inside mine. Stock has way more parts inside than the G/T. I’ve got about 6500 miles on my exhaust now, lots of towing too. I love it. There’s times I still grin ear to ear when I leave somewhere. It definetly got much louder than I expected but I love how it is mostly refined at idle and being easy. I find myself in city traffic using tow haul or range select more just to get that defuel cackle as I decel. Get compliments all the time. The most recent was from an old timer that thought it sounded just like an old 440 coming by. The last one I got was someone saying it sounded like a 5.0 mustang slowing down, not sure if that was an insult haha.
It personally reminds me a lot of our older Hemi Charger Pursuits when just luggin around town or moderate acceleration.