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      06-11-2009, 03:19 PM   #47
Slidewayz
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Drives: 2007 335i
Join Date: Jan 2009
Location: Oakland, CA

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If you do dynos at the same shop, same dyno with similar temp/humidity and consistently see 10+ WHP gains, that sounds like strong evidence to me.

As others have pointed out, we don't yet know if it will bugger up the O2 sensors or other engine components.
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