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Discussion Starter #1
i have flashed my 2011 WRX STi using the Tactrix cable with a tune provided by Eric at Torqued Performance (great guy to deal with, helpful and knows what he's doing), my next mod is the Cobb turboback exhaust along with a retune from Eric, question is how much of a performance gain will i feel by adding the exhaust with the retune?
 

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Depends. There's no real number we can toss out that will be accurate, I'd ask Eric.
 
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