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  1. Problem Diagnosis
    Hey everyone, My 2011 WRX is only making about 10 PSI of boost on a good day. I've had it as high as 12, but that's it. It's currently Stage 1+ with Cobb OTS tune (91 octane) and Cobb SF intake. 97k miles stock turbo (stock everything except intake). I took the IC off and noticed a thin layer...
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