This one is a stocker. I have other play cars to mess with.
There is really nothing that would interest me enough to modify this one. It rides great and with out a lot of work it will not gain a lot of power. But if I wanted a lot of power I would have bought a Camaro.
The key is to understand if they do prove any mod did damage a system or part it is your responsibility at that point. If you are not willing to take that then leave it alone.
I work in the performance aftermarket and make my living working for a company that sells racing and perfroamance parts. It is getitng harder and harder to mod many systems and even harder to hide them. I deal with a lot of warranty work so I see this often.
Key is if you mess something up don't expect GM to eat it. Most dealers are fair and don't give you much trouble on most simple things but if you cross the line too far you have to return the fair back to them. They will take care of their items but not what you mucked up. It is only fair.
Some dealers can go overboard to so watch for this and understand your rights.
The key is done mess something up and then get stuck with a car you can't afford to fix.