I have a 2016 sti it is completely stock and I'm finally getting the itch to get some extra hp. Wasn't sure which direction to go but Ik the ap is the number one thing to do. Not really to sure though what to do after I get an intake and exhaust. This car is pretty much my daily as of right now. Don't really put more then 25-30 miles on it a day. Jus looking for a little guidance. Appreciate it!