Moroso air/oil separator catch can for 2008–2014 Subaru WRX STi with a top-mount intercooler is a billet aluminum unit that separates oil and crankcase vapors from intake air to reduce contamination. Built for the specified STi applications, its small footprint and machined construction provide a purpose-specific catch point to keep intake and intercooler passages cleaner.
Moroso 08-14 Subaru STi (w/Top Mount Intercooler) Air/Oil Separator Catch Can - Billet Aluminum