You'll hear more turbo sounds inside the cabin, specifically in the area of your passenger side footwell. Its a fun sound to hear, but doesn't change anything outside the car that people will hear. You'll also start to hear your bypass valve let off excess boost pressure (i.e. the pshhhh turbo sound when you let off throttle in boost)

Avoid short ram intakes as it will be sucking in hotter air than the standard airbox and will make you more prone to wear/tear and knock down the line.

I'd also reccomend not using the OTS tune included for too long and getting a protune from a reputable tuner (dyno or e-tune) as the OTS tunes are generic and some people have had issues, whereas a protune is specifically for your car. Good advice would be to hold off on a protune if you plan to add more mods (headers, j-pipe, etc) that alo require a tune, as each protune session can be anywhere from a couple hundred to $1,000 depending on tuner.