Quote:
Originally Posted by Joenavy85
look up the conversion of inches of water to PSI and you'll see the difference is miniscule at best. I'm not doubting the results, but put them in terms that we readily use and you'll see the difference is little to none. besides, the OEM filter on a BMW is no doubt of higher quality than most cars being hypermiled.
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MANN/Mahle makes air filters for most cars using the same material. All you really have to do is avoid Fram and you pretty much beat a K&N.
Quote:
Originally Posted by capnbass91
That's what I was thinking, difference would be small, but every little bit helps, Thanks!!
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Exactly. So get the paper filter, save some money and get better filtration. There is no reason to waste your money on a K&N.