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Timothy Benson (not verified)    April 26, 2022 - 7:12PM

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My 15 wrx protuned to 340hp and 380trq with 111,000 miles gets 28.5 mpg. So in no way is any of what is in this article a sell point to me. Any ody who knows anything will run 93 octane since knock is the biggest issue. So being able to run dirty gas in a direct injected engine is not a bonus.

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