I'm using a turbo xs bov type H i believe and the thing keeps openning in 3rd and 4th gear only from about 3000-5000 rpms. I have a vf30, utec, blitz front mount, etc. I'm only at like 17.5 psi of max boost (after pressure drop) and after 5k it stays shut. I have five washers in the bov and it still opens. If anyone has any tips please let me know.