Chinabike

tired it out, made the sound a little deeper and not much loud. No speed increase.

Ya i like the sound too, But do you think the baffle is restricting the speed a bit?
If it easy to remove i might try that today to tomorrow.

Yeah, it does. It's like a tube with a bunch of holes drilled in the sides. I haven't taken it out but I was looking in it just the other day. I'm not going to mess with it, I like the way it sounds. I might have to add a spark arrestor to make it legal to ride in the national forests.