As far as I know, a ceramic coating is not to dissipate heat. It is to keep the pipe a constant temperature. So it actually is to keep it hot in a way. A 2-stroke runs best when the pipe is at a constant temp because then it is creating the same back pressure. If the pipes heat is fluctuating then it's pressure is also changing. So with ceramic once it gets hot it stays hot. Correct me if I'm wrong but this is what I have understood is the reason for it. It is also durable and will not blue out or discolor.
TPC TRIKES
FSU Powersports
RNS Powdercoating