hello; There are a few members that have there engine parts coated and there holding up and this will be a good test if the OP keeps posting. Now back to the up pipe. I always thought the heat in the engine bay was a problem and keeping the cool air in the intake even harder under there. Now I have a bigger SLIC (and that helps) but
I use to wrap the pipe. I don't know if it did anything and I'm no racer but I stopped doing it with no reason.I'm no scientist but why do you think a coated up pipe would not keep the heat out and cool in. If there is an answer (as there are some educated people here)please reply in a simple way that a HS grad could understand.
IBBY