heat coating is great. mate from work has a massive cam and all the fruit clubsport. he drives 20 mins to work in the morning, and you can still touch his headers. we use it on all our drag car stuff, and they get bloody hot. the ceramic coating helps to keep headers cooler, so they dont keep radiating heat into the engine block we're trying to cool down.
the people to use in WA are Competition and Industrial Coatings, in kelmscott. (08) 9495 4237.

(looks better in real life)