I installed the S1R system from TB. Installation was pretty straightforward, and it sounds great. However, i did notice that, when i break relatively hard with my rear brake, the curved bottom part of the brake pedal touches against the muffler. It doesn't hit very hard, but i can definitely notice when it does, because the pedal vibrates from the muffler. My main worry is, overtime, the carbon fiber might crack and exhaust starts leaking. I know carbon fiber is pretty sturdy, but will it crack or get messed up if this keeps up? Because of this, I've been going really easy on my rear brake. Is it only for me, or all TB exhausts for the FZ-09 like that? Recommendations?