i mold and fab up parts myself using carbon fiber. heat properties depend on whatever resin is used, and the heat characteristics they can withstand. carbon fiber is exactly that. FIBER. what makes it strong is the resin after it cures, and the interlacing weave gives an obvious strength.

as far as intercooler piping goes, it would be difficult to make. more difficult than other parts anyways. youd have obvious weight savings, but aluminum piping doesnt weigh much to begin with. it would look nice, but im sure it would require constant touch ups due to rock chips hitting the front tubes all the time. carbon isnt really used for heat dissipation, thats not the whole idea behind its use. so you wont see any gains in it dropping intake temps either.