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      09-20-2015, 04:12 PM   #5
cenix
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Drives: E90 M3 ZCP
Join Date: Oct 2011
Location: SoCal

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I was following all the ARH threads too, and don't recall ever seeing a straight honest to goodness dyno plot/graph on the headers for NA. Really didn't make sense to me that a manufacturer of any performance product wouldn't want to spend the relatively small amount of money to substantiate and validate their product. Sales would be brisk for sure.
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