Moroso Small Body Air/Oil Separator Catch Can Subaru STI 2004-2007 / WRX 2006-2007 w/ FMIC | 85654

Every factory PCV system vents crankcase vapor, oil mist, and moisture straight back into the intake manifold. On a boosted Subaru, that's oil residue building up in the intake tract and on the valves over time, and it's efficiency lost at the intercooler with every heat cycle. This Moroso twin small body catch can plumbs into the PCV system and pulls that oil mist and moisture out before it ever reaches the intake, keeping the intake tract cleaner and the charge going into the engine the way it's supposed to.

The kit uses two small body separators — raw aluminum finish — sized to fit the WRX/STI engine bay without crowding other components. Because it's a twin setup, both PCV circuits get their own separator instead of sharing one can, so neither side is doing double duty.

Fitment: Subaru WRX (2006-2007) and STI (2004-2007), front mount intercooler models only.
Note: Front mount intercooler (FMIC) fitment only — this kit is not designed for top mount intercooler WRX/STI models. Verify your intercooler configuration before ordering.

Key features and benefits

• Captures crankcase vapor, oil mist, and moisture before it re-enters the intake
• Twin small body design gives each PCV circuit its own separator
• Raw aluminum finish
• Reduces oil buildup in the intake tract and on intake valves over time
• Helps maintain intercooler efficiency by keeping oil mist out of the charge air path