Enough said. Haha. Seriously, for those who have not driven a turbocharged 370Z, it is very quiet for daily driving. It feels like a stock Z with an exhaust. If you give it half throttle and rev past 2.5k RPM, it starts to spool. If you let it off around 3k RPM and continue driving casually, the BOVs vent lightly. That's just barely 2-4 PSI tops at partial throttle.