I have had my Busa for a little over 1 month. I have 1790 miles on it. I noticed the other day that one of my Leo Vince SBK carbon fiber exhaust tips is changing color. It looks like someone poured some type of liquid on it, but no matter how hard I scrub it, it will not come off. It looks like a yellow powder type substance. The only thing i can think is possibly when I rinsed it off, the exhaust may have been hot. Please Help.