just unplug the bov, the other one will make a hissing sound on partial throttle ..... can get really annoying really fast.

which is which

is the bov closest to the airbox or the one closest to the turbos?

the one with the hose going to the front half/center of the y-pipe is the BOV.



the other ties into the y-pipe slightly behind that if my memory is correct.

I have the 2-Chamber Apexi BOV that I got from "herblenny". I like it just fine. Nice WHOOOOOOSH!!

Also, I just used a "T" that I bought from Autozone and tied it straight into the stock BOV...real big WHOOOOOSH!! https://www.nopistons.com/forums/pub...DIR#>/wink.png

????

What's the "???" about?

another vote for the stocker..

I think he's having a hard time visualizing two BOVs in series. I guess I am too.

two different hoses with to BOV looking things attached one is closer to the turbos then one is closer to the airbox which is the bov?

The rear one is the the Charge Relief Valve (CRV) for the secondary turbo.