Puffy i'm after a chrome plater as well. I'm keen to do my cam covers but not all platers can do them if they are alluminium. I'm also keen to do my inlet plenum.
I have ceramic coated intercooler pipes and also doubt the temperature benefits of the coatings. I have an intake temp sensor in the inlet pipe and the temps haven't dropped after the coating was applied. I have checked it at all temperatures and loads and appears to be the same.
Maybe it some data accusition problems, i got it done at Competition Coatings at Guilford in sydney. It does look good too.