hey, got a 2002 grand prix gt. now, i know there isnt much to do with the N/A motor. ive used the search bar. but i was just wondering what i should/could do next, and if it will actually add power. as of now, i only have a k&n CAI, cat delete, u bend delete, and pro xs mufflers(if that is relevant). i want to squeeze as much power as i can out of the motor without spending a crap load of money. im not looking for a racecar, just a little more power. i cant afford a top swap right now, so that out of the question for the moment. now....suggestions?