What are some good upgrades i can do to my 1999 RS automatic i am tired of my boy tellin me to sell it i want to show them my car has balls but i dont know what to do besides the basic like cold air, headers and cat-back. I hear about the shift kit and final gear things but i never heard of those i think that i need that and i was told that a tourque converter would help alot also i was told to just spray but i dont know about that so can any one help me please.

Oh you can check my car out on cardomain looks good so far

Looking for 1999 RS automatic performance upgrades.