It's not always quite that simple. You need to make sure your engine can handle the added power, that you have sufficiient fuel to stay stoich, and that the cars PCM/ECU can and will be capable of coping with the odd numbers it's gonna see with more added boost. Just do your research to know if any of this will be an issue. My Sprint can go from 5 to 12 lbs of boost with NO ill effects minus speed.
