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Old 01-15-2019, 05:09 PM   #639
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Member#: 372777
Join Date: Nov 2013
Chapter/Region: SCIC
Location: Compton, CA
2014 WRX Sedan Lmtd


Originally Posted by Loyale93 View Post
Ok... Great...

No. It doesn't. Not at power levels below 400hp. Above that, maybe you could argue it does, but the stock muffler is fine. May not be ideal, but think about a Stage 2 setup from Cobb. They require a downpipe only, not a full exhaust. And that's getting close to the 400 crank hp number with an OTS tune.
I had stock mufflers and it didnt seem to affect power when I was "stage 2"

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