When we did the leak test on mine it would not go above 13psi it was leaking so bad. We found two leaks a crack in the intercooler pipe and the bov and there is probly more just could not hear cause the intercooler pipe leak was so loud with the air coming out. I fixed the intercooler pipe and i'm going to try wraping some tethlon tape around that screw on the bov and put it back in and see if that will stop it from leaking.