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      06-26-2011, 09:43 PM   #14
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Drives: 2015 MW M3/2014 Boxster S
Join Date: Jun 2007
Location: Bay Area, CA

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Originally Posted by GTM_Challenge View Post
Our street X pipe showed gains across the entire power band actually, even with keeping the stock primary cats. It has been verified by some of our customers dynos as well.
Not on my car. It was well within dyno error. (both the Fabspeed and the Challenge Street X pipe did not make any meaningful power)

IMG_4631 by kitwetzler, on Flickr
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