If I had to guess the intake air sensor is built into the MAF sensor. You are probably not getting the actual intake temperature from the manifold, but rather from the location of the sensor. I can't remember exactly where the intake temp sensor is on those cars, but if it is anything like the Subaru, it is built into the MAF. On my car I actually saw temperatures as high as 160 degrees while sitting in traffic with the STOCK intake. I know the Sabaruus (the one with the 2.0 subaru motor in them) had the exact same engine.

To really get a better perspective, try getting an intake air temperature gauge and locate the senor right before the throttle body. I have seen temps in excess of 190* when in full boost on a top mount.