Quote:
Originally Posted by 2forme
It's a bypass valve that you vent to the atmosphere with a breather filter.  A BOV is made to sound louder and more pronounced with no option of rerouting the air back into the intake stream. |
Quote:
Originally Posted by congiiee
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From the page: "The Plumb Back system recirculates all excess pressure back into the intake system. Great for enthusiasts not wanting to be noticed but wanting the performance and reliability benefits of a quality BOV."
So, if you read @
2forme's correct explanation, you have a BPV with a breather filter.