Post by
joe603 »
https://forums.nicoclub.com/joe603-u34652.html
Tue May 30, 2006 3:48 am
As long as you don't touch the engine internals, or change some suspension parts, it will not void the factory warranty. Adding a CAI and a cat-back will NOT void your warranty, but headers might depending on the dealer. However, lets say there's a problem with the fuel system; the dealer can't blame it on a mod that doesn't have anything to do it, ie headers. Now if you throw a supercharger on it, thats a different story...
To answer your question, you can easily get into the 13's with basic intake/exhaust mods.