Kompact Plumb Black Blow off valve.

Fits:

Subaru Forester XT (EJ25) 2008-2012
Subaru Liberty/Legacy GT 2003-2008
Subaru WRX 2008
Subaru WRX 2009-2014
Nissan Juke and Pulsar 1.6L Turbo models. 

Full recirculating BOV. The Plumb Back system recirculates all excess pressure back into the intake system. Great for enthusiasts not wanting to be noticed but wanting the performace and reliability benefits of a quality BOV.