Welcome to the family. $5k is a great
Def do the basics:
SCT tuner
colder plugs
3bar MAP
Drop in AEM filter(Or spend more and go K&N CAI, but no performance gain there)
PPE Downpipes
Then a tuner of your choice. I went with Brad @ AJP turbo and highly recommend him.
That should put you about $1600 in
Biggest achiles heal(s) after that are intercooler and traction.
There is a new IC on the market that is getting awesome reviews, I think it is around $800-900? Plus install. Plenty of posts here and guys have done the install themselves if you are handy with tools that saves $
If you can handle lowered car ride, the H&R springs are great, and improve handling and look. $200-250+ $30ish for the rear camber bolts.
That leaves about $2k. Wheels and tires can soak up $ fast, but if you are thrifty you can get nice wheels and tires without blowing going over that. 275/40r20's are the hot ticket and will fit on 20*9.5 wheels with the 35 offset and not rub.
I snagged a screaming deal on Gmax AS-05's for $95/ea. Right not they are $180-200/ea I LOVE these tires, in fact I put a set on the wife's miata and it transformed her car too. Tons of grip in dry and wet for an all season tire.
Wheels I went Voxx Lago for $675 set of 4. Right now I see lago's around $880 for the set