The colder the air coming in, the more molecules are being compressed on the outlet of the blower. Which results in higher pressure, and more heat. So, a cooler air intake does very very little on this blower.
I run a filter right on the tb. It rubs on the cruise control module. I've been wanting to stick a 22.5 degree pipe on it for a couple years now to get it away from there, but I have more important things to do.When I race, I don't run any filter.