hmm.. glad to see this has got some people thinking... What I really wanted to do was basically freeze the intake pipe so the air coming in would be super cool, but doing this at idle stalls the engine... I was afraid to try it with the trottle down. Could this work? Use liquid oygen/nitrogen or tetrafluoroethane (liquid in compressed air cans) to chill the intake... I'm sure this would work on intercoolers, but I'm not turbo yet.