Sorry for being paranoid but what mods would void a warranty? I'm thinking about slipons and removing the emissions....I just don't want to jack things up and void my warranty, yes I am paranoid, but I did cut the tags off my mattress.
It depends on what the warranty claim is. For example, if you install a set of slipons and the next week your battery pukes or a wheel bearing goes out, it's obviously not related. There's US law that protects consumers in this fashion, it's the Moss-Magnuson Act. Any search engine should bring it up. It's referenced on K&N packaging.