Originally Posted by wstar

I donno, in.the.dark may actually be correct on this. I guess it depends on exactly how the mix is calculated by the ECU? I don't know enough to say for sure. But he's right that if you appreciably cooled the air post-MAS, the MAS would see a higher flow volume of the hotter air. Whether that makes everything equivalent in terms of what the MAS measures and the ECU calculates is what I'm unsure of.