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Well you can you can get off your ass and go out to your truck and figure out where IAT2 sensor is yourself and be sure about it, like I did, OR you can believe me, OR you can believe the vendor who's sole purpose of making a claim of any sort is trying to sell you a product.  I haven't read any true objective analysis of the intercooler efficiency and was setting up to measure it myself when I discovered where the IAT sensors were actually located.  There is a MAP sensor at the throttle body which would NORMALLY be a T-MAP to measure the air entering the manifold right from the intercooler.  However it is a MAP, not T-MAP.  Anyway, I (or you) can make the (any) IAT2 sensor read much lower by injecting a little ****/water into the intake...