Cisco -
I have a suggestion for something you might want to test. I have covered the air filter box of your cold air intake with
VB-4 barrier material from Cascade Audio Engineering (the same stuff that's in SmarTenU8). It has made a noticeable reduction in the air intake noise... and because it has an "R4" thermal insulation factor, it probably helps with the cold air aspects of the intake as well.
Something like Dynomat or Fat Mat might be more suitable.
Congratulations and good luck with the new enterprise!