I have hit 30psi on a GTX3576........................ Im running standard Airbox with K&N panel filter!!! 3.75" MAF.................. @Rayd and I have taken the standard airbox turned it into something else........ We have seen intake temp as low or lower than amb with 3" pipe to bar at speed! I will see how far i can push atm 310kw is what i have seen in VD.......... Another Ozmps First!!!