Did you do the math? Cannister length, diameter, baffle-medium, etc?
The BMC should be equivalent to either the stock or a K&N for purposes of the most basic non-custom map...You did say it was running rich, so perhaps you are not getting the airflow you are expecting?
Do some math on the silencers listed on the web/with the software, and find one close on the numbers, if not close in look.
Pay the money, and go to a reputable shop and get a custom map.
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