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      10-19-2012, 02:01 PM   #5
Havok_2011's Avatar
Drives: Alpine White 2011 M3 Coupe
Join Date: Mar 2011
Location: Toronto

Posts: 3,009
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Originally Posted by 1lyfe View Post
I have an OBD reader that can tell you the Mass airflow rate if you want to see if theres actually a difference

This should give close gains to the BMW Performance version. I would be surprised if it doesn't.
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