Icing the down the intake manifold/blower of any car is definitely a good idea. I have seen people at the drag strip doing it for years.
I will never forget a guy years ago with a 94+ cadillac v8 sedan who was running high 14's at the brother hood raceway (terminal island) in san pedro, CA. As far as I could see all he was doing was icing the intake and he had no other mods on his car. He was continually beating a young kid in an automatic twin turbo supra!