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      10-16-2014, 11:00 AM   #172
hassmaschine
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Drives: "NBO" 330i
Join Date: Jun 2014
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does anyone realize that airflow through a filter is basically a function of surface area? just because it's a cone-shaped filter doesn't mean it flows better, the number of pleats and size of that cone is definitely worse than the stock paper filter. the only possible way it could flow better is if it has bigger pores in the filter media, in which case you still don't get any better flow but you let more dirt in your engine..
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