Scroll through the performance threads man. There has to be HUNDREDS of posts on this. Im new too and I have been spending lotsa time searching through the different sections. Lots of info to gather.
Both of you, welcome to GV. As DCJ mentioned, there are lots of threads. The most performance you will get out of a stock engine, especially if you have a base Vibe, is adding the GM/TRD Supercharger. Outside of that, it is an economy car so extreme mods are limited. The ones you do find, are usually more than the car is worth.
That said, feel free to post some pics of your ride. You can change the look of it easily with some wheels, tint, and lowering it.