A dual air temp sensor that I installed shows that the inlet air (out of turbo) at 16 psi is about 275 F, while the outlet is 140 F. I haven't seen it get over 140 F. Normal "down the highway" is 150 F out of the turbo, and 90 F out of the IC.
I have no idea how that compares to an air/air, because no one seems to know what an air/air setup actually does. Everyone assumes they are the best and no one seems to have real numbers. If you have some, let me know! That is the smallest air/liquid that Spearco makes.
That is my buddy Matt's Hummer. It is a H1 wagon, but civilian. It looks like nothing you have ever seen because he actualy offroads with it! The day these photos were taken was the first day it had been washed in 4 years.