hey every body I'm the proud new owner of an '01 Z06. It's my first C5 and I have a lot of questions about performance options, so maybe some of y'all can help me out on here.

Welcome. Obviously I'm partial to the C5 ZO6 - great car.

As to mods, you can get a feel for them by reading "Mods and Getting 500 HP" which is about halfway down on the page of threads in General Tech section here, and "Horsepower Ratings, Mods, and Comparison" a few steps farther down. Those talk specifically about the LS1, 6, etc. series engines and mods.

Welcome to the forums. My car is my first C5 (and Corvette) too and I have already learned a lot from the people here and I'm sure you will too. Just ask and somebody will usually come along with the right answer for you.....and by the way Congrats on your new C5, enjoy.