Even if you put a heat shield, I don't see how this becomes a "cold air intake". Where is the cold air coming from? CAI by definition takes in air from outside the engine bay. Secondly, this engine is already running lean near the top end. More air isn't going to do you any good without increasing the size of the injectors. The existing airbox and filter is not a restriction on this engine. The only restriction on the intake is the muffler tube ahead of the airbox. K&N filers are garbage.