I just bought my first Mustang about 2 weeks ago. It's a 2002 GT Convertible "Deluxe" model (not sure exactly what that means).
The car is in excellent condition, and is what we thought was 100% stock. Everyone has commented on how loud the car is. It definitely "growls"

, and it's almost difficult to have a conversation over the sound of the motor on the highway.
So, I'm thinking that heck, maybe all Mustang GT's sound this good. But while washing the car, I notice that the exhaust pipes say "Flowmaster" on them. I look at the original dealer invoice (from the original owner), and it includes "dual stainless exhaust".
So - newbie question. Is the flowmaster exhaust stock? Or is this something the original owner added on? I'm not complaining - I love the sound of the car, just curious.
Thanks!
~T