If it works properly with the MAS then it should go UP a bit, since there is more air, if you install a chip upgrade you can run more Gas in the combustion chamber and get more HP, at the expense of MPG,,, But most power will come from Upper end of the RPM, You will loose a little bit of Low end torque.
This is the effect I have had with all CAI on the last 5 cars i owned. (Yes i am an avid import tuner

)