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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.
Originally posted by DizzyWRX I'd wait. I heard that if you don't do a proper break-in, you can prevent your pistion rings from sealing properly, and you get blow-by in the end. Not worth it IMO.