Congrats on the buy.

But please, for the love of god, do not put altezza lights on it.

You don't need a new cat or computer chip like snoopy said. If you can't do those other mods yourself, you shouldn't even bother with professional installation. You won't see much of a gain with those parts, just extra noise.

It's your car, so do what you want and whatever you do, good luck.