Chances are you won't see an increase in power as when you run up on the dyno the operator places the IT sensor where the air is sucked from, if its a pod usually on the pod, if its the stock air box inside the CAI.
As the POD see's a higher inlet temp from air passing through the radiator the IT sensor see's this, reports it to the dyno and the dyno pumps up the power figure to supposively 'compensate' for the given car's poor setup. Thats the way I look at it anyway
Shove the IT sensor in the cai of a box and the it sensor reading will be lower so no or very little power correction will be made.
I've always strongly believed shoot out mode is a load of crap for this very reason, it should be placed in front of the car in the stream of the air leaving the big arsed fan. If you run a pod the motors going to suck hot air thats passed through the rad, so its going to make less power, if it runs a good cai and box its going to make more with no adjustment to the power reading other than the temp of the air the car is being blasted with. Reflects more so the real world on road performance with the bonnet down.
If that makes sense.