^^ Yeah I agree. It only pushes out 5psi max and our cars naturally suck up to 14.7psi(atmospheric pressure) so it would pretty much make it pointless for it to even be on there.. It would probably have to push out like 19.7 psi in order for it to behave like 5 REAL psi..
And also.. The description says it spins at around 20,000rpm. Real turbos spin at 100,000rpm+
So yeah I wouldn't expect much out of it.. I'd still wanna try and show it off to people that don't know about it haha.