Is it boosted?? lol
I would upgarde the exhaust 1st, make it breathe easier... no need for CAI right away
Then a major service... engine, gearbox, diff oils, plugs, etc
Then a nice set of DBA rotors and green stuff pads
Then coilovers, sway bars... maybe even renew all your bushes as the car is gettin old and the bushes are most probably close to worn out