Get a 34 row oil cooler and a tune... if you get any other breather mods, get the tune after those are installed. Consider Ecutek over Uprev.
Lots of cosmetic or performance options with the remaining $1000-$1500. Lots of good ideas have been mentioned. Rotors and brake pads are good upgrades - the sport caliper are solid for anything other than full on racing. Do your research and tailor your choices to your usage for the car
