Meth or water injection can work pretty good...they're great for slapping a turbo or supercharger on a nonturbo car so you dont need an intercooler. However if your system relies on it in order to be safe, its not a great idea. They can clog or run out of fluid and then you're in trouble...
In my opinion you're better off replacing the junk restrictive stock intercooler and piping system with a larger and more efficient FMIC, and larger piping. It'll have the same effect and you wont need to fill it every few days.