Moroso billet aluminum air/oil separator catch can for 2004–2007 Subaru WRX and 2004–2007 WRX/STi applications and compatible 2006–2007 model years as noted. It removes oil from crankcase vapors before they enter the intake tract, helping limit oil deposits on intercooler and intake components typical in turbocharged Subaru engines. The fitment-focused design aids a cleaner install.
Moroso 06-07 Subaru WRX/04-07 WRX/STi Air/Oil Separator Catch Can - Billet Aluminum