i just took my 2013 mustang for her first oil change, while i was there i found out about putting an exhaust system on it, they told me the collision center handles all body work like that. i stopped there and asked how much they charged, i also asked if it would void my warranty since ford is installing it. my salesman told me anything i do as long as ford installs it will NOT void my warranty, but the guys at the collision center had no idea. does anyone have an idea? any answers would be great, or how i could find out? thank you!