You could experiment with stuff like this
Heatshield Products
Would be tough to determine if it made much a difference without being able to log air temps from the ECU tho'...
I suppose you could pick up a couple of temp probes and do it in a DIY manner to get an idea how well it's working. May or may not show up on a dyno, espeically with fans blowing and the hood open.
Or, if you are looking to cool things down for a drag race...
CryO2 intake systems