i know this sounds kinda stupid.... but i'm mostly stock and was thinking about turning the boost up on my car a little.... to like 21psi or something.... is this a waste of time?? would this be bad for the car?? can the 16g handle it well?? would i even notice it??

 

21psi is fine w/o a tune but use 93octgas also tune your boost on 5th gear dont go bumping up boost on 1 or 2gear do it on 5th!