Originally Posted by gerald_weigel
Will the powdercoat act as an insulater, and cause any problems with the air intake?
Yes powder coating will act as somewhat of an insulator but should not cause major concern on an intake. Depending on the color of the powder coat you can expect some discoloration if it is to close to the exhaust.
Anodizing would probably hold up better but is fairly cost prohibitive. Additionally before anodizing the part needs to be polished and that causes heat not to transfer as well so in effect is also an insulator.