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What HP gains from a new stock WRX STi ?


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Without search this entire forum, has anyone had any direct experience in what you can get out of a brand new WRX STi with just taking it to a decent tuning shop and getting them to re-map, ie flash the stock ECU ?


I don't want to make a single change to the car in terms of intake, exhaust etc, just re-flash the factory ECU and run on 98 octane fuel ONLY. Obviously run a top quality synthetic oil and maintain the car.


I know this is a Legacy forum, but there are plenty of people here that have owned a number of Subaru's.

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