I was talking to a car guru friend of mine and he said that I have to be careful of the MAS if its in the airbox and if I am installing a cold air intake. I don't remember exactly what he said, but something to the effect of installing such a kit could require a recalibration of the sensor or something like that. Is there anything I should be aware of MAS-related or not when installing a cold air intake?

Additionally, someone on this forum offered me an AEM Bruteforce for a good price, but I noticed his xterra had a S/C and mine does not. Is the Brute Force model S/C sensitive?