Black Dual Port Blow Off Valve BOV For Subaru WRX STI FORESTER GT XT. For Subaru WRX STi 2004-2018. For Subaru WRX 2002-2007. a new generation of "Push Type Floating Valve System Blow Off Valves". The Floating Valve design produces quicker valve response, increased valve travel, and improved resistance to premature valve lift and boost leak.
