I was headed home from a "work meeting" at the local fun park last week and went around a red GT mustang who was following some slow car. He buzzed by me a minute later, then slowed. He revved it once and let it back down. We slowed to about 60, then he just took off. I take off after him and rather quickly catch up and pass. Since both our windows were down, I gave a polite wave as I moved by. By about 110ish, I let off and he flew by me and just kept on going. (sore loser? or wanting more? I wasn't sure)
I know it had exhaust and am assuming at least an intake if not something else. It sounded pretty nice when he took off, though.
It's always nice to put one of those mustang guys in their place.