Re: I need Tips
CAI - aka cold air intake. that is always the fastest and easiest. Not sure what year it is. If it is older then I would go ahead and replace your plugs and wires. Upgrade now if you plan on doing some serious mods in the future.
You can always go with an exhaust as well. Cat back or even a full set up. A full set up will cost you more, but you are replacing the cats.
That is just for starters. It all depends on what you are looking to do and how far you want to go.