Sounds like a Mazda rotary. That's about my only complaint. Exhaust piping looked to be 2.75" to me so an aftermarket exhaust would yield more power and better responce yet and sound better. I really love the muffler the factory went with tho it needs to be a little more matcho in normal mode and straight loud when the valve is open.
I finally bought some pics from the photographer who is always at the SCCA track events. I looked for a track pics thread but surprisingly didn't find one. So here's a thread to post pics of your RS at the track!
We've got lists for a lot of stuff on here but I didn't see one for people who's car has an Instagram account. Add yours in here and we can all follow around and have another place to bug each other on.