Three-Stage Intake Manifold N52B25 - 323i
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05-04-2010, 04:07 PM
Join Date: Jan 2010
Originally Posted by
I know it's bad for the emissions but I am sure it is okay
as long as your still running the secondary cats.
WOW, are you serious with that dyno? 15whp?
Did you have a shop do that, or..?
2011 135i 6MT - Alpine White / Savannah Beige
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