I just bought a 2002 325i and i am looking to do a few performance mods. I am new to the BMW world

and i am not sure where to start. I am not looking to make the car really fast, just give it a little more power and make it sound good. I was looking to buy an exhaust, chip, and intake. I have about 3000 to spend on all of this i was wondering what other peopel with 325's run and what my best options are. Also if any one happens to have any sound clips of their car i would really appreciate it. Thanks a lot.
Blake