Any of the name brand exhaust will perform similar (FMF, HMF, Alba, Barker Etc.). If you only purchase a slip make sure that company offers a header for it in case you decide to upgrade later. Headers will not interchange with other brands.
The power commander is the best tuning option there is, The only others I would consider would be Alba and EHS.
Currently there are no Rev Boxes, Coils or Air induction systems available.
Congrats on the purchase. Contact me if you need help