Help! GM Major Guard Extended Warranty

[Willis76]

First off, thank you for all your comments, very much appreciated.

Another question - are there any aftermarket exhaust systems or air filter systems that may void these warranties? I know most of us change out both of these fairly soon and was wondering if GM had any issues with them.

 

[Chrisr]

I don't know which exhausts or air filter systems would void your warranty, but I do know that Borla is authorized by GM. Hope that helps ya some.