It should turn out pretty well for you. If I remember correctly mine dynoed at 368hp and 372 tq stock. Mine is a M6 as well. They should be able to tune out some of that torque management and with the CAI, I would imagine you should feel the difference. Not sure about other power adders but with the S/C on mine I am still getting 25-26mpg on the highway. This is my daily driver as well.
'10 CTS-V : LPE 650+ Package 587hp / 582tq
2.55 Upper / 8.6 Lower / ID850's / Kooks Longtubes / New Era CAI