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      11-01-2012, 10:59 PM   #31
Johnny D
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Drives: 2006 BMW 325i
Join Date: Apr 2011
Location: Hot Springs, AR

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2006 BMW 325i  [9.16]
Quote:
Originally Posted by Volasko View Post
Isn't 20-25 HP/Torque optimistic? I hear the stock exhaust flows pretty good, it is just the cats that kill the power. Besides if you cut everything out it is going to be loud as @$!$
Dynos have shown around 15hp for the primary cat delete. Dynos have shown around 5-10hp for exhaust. I think a 20-25 hp gain is spot on.
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