The car runs at 7psi and flick the switch and it jumps to 14psi but then the switch stopped working but last night it started working again at 19 psi and I couldn't say what turbos its got the previous owner said it was running at 380bhp but I don't have any proof this is my first 300xx and I don't know a lot about them what else do u want to know and I will try and find out