I did some IAT logging on both the LMM and LBZ, In the summmer time the LBZ saw as high as 168* I dont remember what IAT2 was but Im sure it was terrrible. ON the LMM GM did a awsome job the inlet air temps are always within 3* of the ambient temps. IAT2 wich I believe is the air temp after its gone through the intercooler, it has shown pretty good also I don't remember exact numbers but I think it was 10-40* over IAT. I will have to go log it again.