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  #1  
Old 12-09-2008, 06:08 PM
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Newb!

Hi all. Just bought the X5, and I have a question. Is there a K&N element replacement on the market, and where can I find one? I am not looking for a "cold air intake", just to replace OEM element with K&N.
Thanks for your help.
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  #2  
Old 12-09-2008, 06:24 PM
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wil that increase a little HP or something?
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  #3  
Old 12-09-2008, 06:27 PM
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K&N does nothing, stick with OEM.
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Old 12-09-2008, 06:35 PM
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I am NOT after HP. I live in a VERY dusty environment, and I like K&N because of the ease of maintenance. And I was not looking for "pro" and "con" K&N posts, just for a pointer where can I find them.
Thanks.
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  #5  
Old 12-09-2008, 06:58 PM
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Cool....

http://www.autoanything.com/air-filters/


A waste, but W/E Might want to consider the cons since the oil in a K&N can mess with the A/F sensors.
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We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.

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Old 12-09-2008, 07:02 PM
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Quote:
Originally Posted by Wagner
Cool....

Might want to consider the cons since the oil in a K&N can mess with the A/F sensors.
My indy mechanic made me take mine out bc he said the oil could foul out the MAF bc it is located so close to the filter - of course I am speaking of the E53, so I am not sure it is in the same location as the E70.
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Old 12-09-2008, 07:03 PM
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Thank you. Do you have some examples of the interference with AF sensor? I've been using K&N on all of my vehicles for years, and did not have probs. Have one on the Cooper, and H1 as I type this. No probs.
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Old 12-09-2008, 08:34 PM
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Quote:
Originally Posted by X5Dawg
My indy mechanic made me take mine out bc he said the oil could foul out the MAF bc it is located so close to the filter - of course I am speaking of the E53, so I am not sure it is in the same location as the E70.
I agree, stick with a factory filter. On top of the mass air flow sensor, they also let more dirt enter the engine... BMW won't cover your MAF if you use an after market filter.

Craig
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Old 12-10-2008, 10:09 PM
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Quote:
Originally Posted by Danielsand
Thank you. Do you have some examples of the interference with AF sensor? I've been using K&N on all of my vehicles for years, and did not have probs. Have one on the Cooper, and H1 as I type this. No probs.
odd that there is a K&N banner ad below your post.

http://www.knfilters.com/


it's your vehicle, you assume all of the potential risk.
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  #10  
Old 12-11-2008, 12:13 PM
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Might be a different browser. I don't have K&N banner on my screen!
After posting this, I talked to few people that drove the X5 for a while, and everyone agrees that K&N in this vehicle is a potential trouble. I was hoping to hear from the owners that use CAI, or just the filter, and their experiences with that.
Here in the desert, the AF gets dirty fast, and I've been using K&N for a while for the ease of maintenance. Much easier to wash, and oil K&N, than to drive 200 miles to the dealer, and pick up OEM.
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