Sadly there just isn't much available yet. I know some vendors have been test fitting exhausts, here's what I know has been confirmed to fit:
Perrin Single Tip CBE
Perrin Dual Tip CBE
Tomei Ti Single Exit CBE
There might be more but that's what I know for sure has been test fitted right now. As far as exterior, I don't think there's much out yet, it's a new body style so it takes time but I'll keep an eye out and let you know if I see anything. Just be patient, I know several vendors are working feverishly to try and get new parts out as quickly as possible but with a relatively new motor (and the first turbocharged production version of it) and a new body style it will take some time before the parts start flowing.