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#1
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Anyone use some K&N drop in filters?
I know there are alot of fears of oil mist on the sensor. I dropped a pair into my E63 and it was fine. I removed the charcoal filters and every once in awhile the check engine will come on. But it just goes out after a little driving. is it worth it for the X5 m? When I had my E46 M3, all the boards claimed the factory paper filter flowed just as much as any K&N, so I never changed it. But the X5 takes two filters. That has to flow more with a high flow filter. and on a turbo vehicle, filters usually make a difference.
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2011 BMW X5 M 2009 Mercedes E63 AMG-FOR SALE or TRADE |
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#2
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Another way of looking at it is that since there are two filters, the absolute requirement on each one is halved, ie restriction is only half as important.
Unless you have the flow data for the OE filter, the K&N data by itself is pretty meaningless. You would need back to back flow tests on a test bench to find any difference, and that difference could be positive or negative. Short answer is that it is very unlikely to matter, and with turbochargers it will matter even less so. Only reason to buy them is for a conversation topic IMO.
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2007 X3 3.0si, 6 MT, Premium, White Retired: 2008 535i, 6 MT, M Sport, Premium, Space Grey 2003 X5 3.0 Steptronic, Premium, Titanium Silver 2002 325xi 5 MT, Steel Grey 2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue |
#3
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is there charcoal filters on the x5m ??
i took em out of my m5 and it made a huuuge diff , if the x5m has em i'll rip them the fuk out and test it NEIL
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2013 F10 M5 ALPINE WHITE/BLK/ANTHRACITE |
#4
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____________________________________________ - 2011 BMW X5 / / / M Black Sapphire Metallic - 2003 BMW X5 4.6is Black Sapphire Metallic - 2003 BMW 540i Sport Black - 2010 MV Agusta F4 Black - 2005 srt10 Dodge Viper |
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