I have been running 20psi daily for a year with my stock, uncrushed 1g BOV. I hit full boost at around 3800rpm on a Green. I doubt it is leaking much. It may leak a very small amount, but hardly enough to consider it a problem. Plus, when you crush a BOV it actually has the negative effect of not working properly at low boost levels. That means at partial throttle where you may only build 10psi, the BOV will not work properly.


I have to go with Matt on this one.