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      10-27-2018, 01:51 PM  
onfireX5
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Drives: F90M5,F85X5M
Join Date: Jul 2015
Location: Va

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Tested the stock F90 Air Intake System.

Not bad, but some room for improvement. My Corvette ZO6 was much worse. My X5M was slightly better. All stock systems. Only outlier is my F90 has the RaceChip on 7, so it will require more CFM than a pure stock F90 and that will cause more pressure drop. Possibly 5hp more loss than pure stock due to the filtered restriction. Also this is without the Charcoal filter, just stock air filters. Next test will be a higher flowing panel filters. r33_RGSport
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