Update -
The mufflers on this are straight through (fancy glass packs). After some use I think it is a bit louder. There is pretty good (annoying) drone right at 2K RPM, not at 1900, not at 2100? Unfortunately with the auto and the 3.27(?) gears is right at 70mph. Most of the roads around here at 65 so do the math. It being a 'vert does not help. I have seen a bunch of people that have added 1/4 wave J-pipes that seems to help. A video on this where they basically say "oh yeah, your car will drone at 2K".
I still absolutely love it when floorboarding it and it runs up to 6K.