So today i stopped by my local chevy dealership where i brought my truck. They use to be a really cool dealership that would warranty everything. They would even install programmers and exhausts,etc. . The main shop manager told me today that a GM sales rep stopped by to basically chew them out. They told them not to do ANYTHIN to these trucks. And also not to warranty a truck that had anythin done to it - performance or looks. He told me that he would have to void my warranty if i altered anythin. Even cuttin half the stock exhaust tip off and weldin a chrome tip on. He said not to even put a tadge bigger tires on it because he would have to void warranty. No gauges. No nothin. Even if what I did did not cause the problem they wouldnt warranty it. Is this not some bull#### !!!!!!! I just wanted to warn everybody about that. Make sure to check with your dealer if you want to modify anythin and keep your warranty.