its defienently around 6k rpm but runs stong otherwise. I bumped it down to 16psi.I have a black TT auto that is a daily driver with minor mods so i kinda have that little voice in the back of my head that wants something to go wrong so I have a good excuse to rebuild and upgrade turbos. i do know my nextstep will be intercoolers and a new tune. Waiting on ZNationals we will be making the 12hr journey down in September.