Who are the "other guys" with MY11 STi's who had 239hp before even doing anything? Did they do a dyno run before the modifications to see what they were putting out stock? I doubt it. Sounds to me you've got factory figures in mind which are actually flywheel numbers, not at the hubs.

Also, some cars are just spuds. I can attest to that with my '08. Other owners with 08's with the same mods as me were getting 10-20hp more than my car on the same dyno, by the same tuner. Some were running 18/19psi but the maximum boost my car would safely take was 16.7psi. Not every car is the same nor will react the same as others after modifications and tune.

You might just be driving a potato unfortunately.

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