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2015 STI and WRX Dyno Time

By Perrin Performance

STI Dyno Session Pretty much every tuner in the world thinks the 2015 STI is the same old boring EJ25 engine and that it's going to tune the same and make the same power. Well I hate to say it, but they're all wrong (as was I)! Our initial dynoing of the 2015 STI showed something very interesting. ...

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