So I have the AAM midpipe and short tail combo... Sounds amazing with the stock cats.
I added resonated test pipes and it is extremely loud. It gets a little rough between 3500 and 4500rpm and starts to clean up the sound afterwards. So this is just an FYI if you decide to run something similar.
Just like FP was saying, you'll make more power with TP's. Do yourself a favor and buy resonated if you do go that route. The power difference is 3-5whp at most.
I recommend you get the muffler option... If you're going for their older true dual design, you should be fine either way