I installed my new T04E recently and my SSQV chirps once before it actually blows off. It sounds like there is too much air volume to let it all out at once. My local shop told me that running a second blow off valve should solve the problem. Any input on this? Also, is there anybody out there that is already running a dual BOV setup? If so what BOVs are you using and I'd like to hear some sound clips.