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      09-25-2012, 05:30 PM   #20
Marco@McKennaPerformance
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Drives: E90 M3
Join Date: Aug 2012
Location: Norwalk, CA

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For those curious, Dinan advertises these gains for the X-Pipe:

"Max HP Gain 23 @ 8200 rpm
Max Torque Gain 21 lb/ft @ 4800 rpm"

Most likely it would be a bit more than that since Dinan #'s are always conservative.