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Engine/Power - EJ20T (pre-2006 WRX and JDM)There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.
Take the IC off and look under the throttle body and towards the passenger side. You'll see the PCV valve screwed in to the engine block with a hose connected to it.