Wouldn't bother with cam coat cermachrome as it flakes off.

I've used it in the past

Its just like a ceramic liquid thats sprayed on and baked in the oven.

I'd go with Zircon Coatings, fast turnaround and fantastic quality.

Zirconia is one of the best thermal ceramics available for this application

http://www.zircotec.com/

They use plasma flame depostion to spray it on

As used in Aerospace industry and F1 so it speaks for its self.

Works well on my car




Reduces underbody heat considerably and is supposed to keep the heat in the exhaust which speeds up air flow and increases power

I got it done to stop my bonnet melting