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  #11  
Old 10-09-2007, 03:51 PM
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What about the afe intake system? Does anyone have it?
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  #12  
Old 10-09-2007, 07:22 PM
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Here's my stock answer for these fancy air filters:

-Go to a nice clean paved country road.
-Do a few seat of the pants, or better yet, timed acceleration runs.
-Pull your air filter out.
-Do the acceleration runs again.

Notice any difference?

Didn't think so.

-Don't forget to put your air filter back when you are done.
-Save money from not buying fancy air filter for or or



Bavarian Autosport sells stock air filters for $16.95 for the 4.4 l engine.
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  #13  
Old 10-10-2007, 11:23 AM
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I just took my X5 in to an independent shop to have some work done and the owner HIGHLY recommended that I remove the K&N filter and put the stock filter back in. He said the 4% increase in air flow was not worth the $450 price to replace the air flow sensor once the oil from the filter faulted it out.
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  #14  
Old 10-10-2007, 11:33 AM
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Quote:
Originally Posted by X5Dawg
I just took my X5 in to an independent shop to have some work done and the owner HIGHLY recommended that I remove the K&N filter and put the stock filter back in. He said the 4% increase in air flow was not worth the $450 price to replace the air flow sensor once the oil from the filter faulted it out.
Agreed, skip the filter.

4% increase in air flow , you would get more acceleration from a well placed fart against the seat back.
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