This is what i got , what mods could i get that isnt to expensive to make improvements to mar car that i can feel i need more power my goal is low 13 second 1/4 miles.

Patriot Red with Black top. Many suspension upgrades with SS Style Rims and new Nitto tires front & back.
Flowmaster dual exhaust with chrome tips, Kenny Brown sub-frame connectors, Eiboch Springs (lowered 1.5"), Hotchikis Panhard rod, strut tower brace, lower control arms, 3:42 gears with an Auburn 3 series posi-differential, and T/A rear-end girdle. B&M ripper linkage.
Stereo:
Alpine CDA-7940 HU, MBQuartz RSW-6.5 Separates, Infinity Kappa's in rear, JL 10W3 Sub mounted in side stealth box, PPI 650 amp. System sounds great & was $3000 installed.
Very reliable and in good condition.

 

Get a cutout or new catback, the flowmaster doesn't really flow good, a cutout is a lot cheaper, and they sound great. Also, bypass the throttle body, didn't catch your model year, but on 96 and up it's as easy as moving a few hoses. On the earlier models you'll need a few parts but nothing expensive. It's basically free and gives a dyno proven 5-7 hp to the wheels. Also get a CAI. Right now, work on getting the engine to breathe better (CAI, exhaust, headers, etc.). And while headers aren't cheap, they give great gains and really bring the car to life. There are lots of other little mods, but they won't provind too much gain.

 

Oh yeah, another easy way to go faster is to drop weight. While I doubt it's feasible for the street (you spent a lot on the sound system), when you go to the track lose the speakers, box, amp, etc, and take out the spare, jack, and anything else you can find that isn't necessary.

 

Maybe I missed it but I dont think I saw CAI in there anywhere. That is the very first performance upgrade you should do. Has the most bang for the buck. Then headers and exhaust system. You got some good suspension already.

Good luck