This is the CTS Turbo Valve Cover Breather adapter for 2.0T FSI engines including Golf R.
This billet piece is constructed from T6061 aluminium and comes standard with machined finish and -10AN fitting connections and barbed connection to mate to factory block breathers.
These pieces are commonly used when replacement for the factory PCV system with upgraded components or catch can kits.
Two -10AN fitting connections
T6061 Alum construction
CNC machined finish
Connection to factory block breather