so the secret is out
BTW it sounds awesome. Saw the video from the last event, but when I heard it firsthand today with that stock front pipe, I was blown away. Note the complete lack of "rasp". As you can see in the video not much louder than the STR MX-5 despite the catless header. Forgive the shakiness, 210mm lens handheld manual focus is no easy task!
Here's some media:
[ame]http://youtu.be/jRDOWkc70ss[/ame]