^My tuner was not able to run a 50/50 vent to atmosphere with the Stillen SC and Turbosmart Kompact dual port. The venting created issues with the tune and driveability. It's set to fully re-circulate. No pshhhhhh sounds.
Car runs great though.
EVOHUNTER, did you need to get your ECU re-tuned or did you just tinker with the knob on the top of the BPV until it was venting and idle was OK.
Doesn't the BPV suck in unfiltered air as well?