| Tonio,
I think you are talking about some sort of exhaust wrap, Possibly foil/asbestos type cloth. I don't think i have seen this sort of thing on modern race bikes.
Carbon is reasonably poor at holding heat hence it gets used for shields on bikes. Its also Ok for exhaust cans. carbon cans don't resist crashes as well as metal versions though.
if you really want to got for the best solution it is possibly to have pipes internally coated with some sort of ceramic coating to keep the heat inside the pipe and reduce transmission to the metal pipe itself. It will be expensive though.
I can't see heat transmission being a big problem on a Due bike, unless you have fitted some exhaust bits that are routed a different way to standard.
Ray. | 
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