Originally Posted by oxycodone

Increasing air flow (on both the intake and exhaust) will help. Changing your fuel map to accomodate the increased air flow is much more important.

I was being facetious in my previous post - there are many on this board who have stuck some aluminum tubing on the intake, routed it next to the engine and fitted a cone filter on the end and called it a "Cold Air Intake" - which I personally find hilarious... while that system may get you increased airflow, it certainly won't have a lower temperature than the stock setup.