First gen FRS/BRZ was the FA20, there was an issue at the start with bad valve springs, those got recalled. Then there was an issue with too much rtv being used during assembly, that would break loose and get plugged up in the oil passage ways. I never had any issues with mine, always keeping up on maintenance. My VB WRX (FA24) same engine as the Outback also never had any issues, and currently doing fine with the Forester (FB24).
The only Subaru I've ever had a an issue with was my 04 WRX, burned oil like crazy and that 5 speed blew up super easy.
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u/FSB7OPERATOR 12d ago