welcome and congrads and lol yes there are all kinds of mods people will recommend.
CAI GEN 3 probably most popular but I went takeda
M370 I haven't bought yet but on the list
High flow cats (berks) I have I like there are others Fast intentions etc test pipes another option depending on state
Exhaust I would say 2.5 all the way through which is what I'm on now
There's a few breather mods (lets not forget forced induction
)
Then you get into
tunes, suspension, exterior, interior, etc.
Depends on who you talk to and where you want to start. It's all preference really how you want your car to sound, look, and feel. More than enough threads and reviews on here to get reviews and ideas before buying a particular mod. Enjoy!