K&N air filter
#11
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Join Date: Aug 2004
Location: Quincy, MA, USA
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My Ride: E60 530i
Model Year: 2004
Engine: M54
Originally Posted by tategoi' post='481302' date='Oct 14 2007, 05:19 AM
There have been much discussion on the K&N air filter impact on the MAF sensor. I have also read K&N assurance that using K&N air filter will not have any negative impact on the sensor. However, my MAF sensor did get bonkered after using the air filter for 6 months. The reason may not be due to the K&N, but I just wanna do a survey how many of you did experience such failure after using K&N.
#12
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Join Date: Sep 2005
Location: Long Island, New York
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My Ride: 2005 525i Titanium Silver Metalic and 2003 325xi Jet Black with the Premium Package in both cars.
Have on my 525i for about 1 year with no problems.
#14
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Join Date: Oct 2007
Location: Los Angeles, CA
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My Ride: '05 545i
Just installed the K&N and removed the Charcoal Filter today.
I can DEFINITELY feel the difference.
The car is much more responsive. The exhaust sounds deeper..
Liking it so far...
I can DEFINITELY feel the difference.
The car is much more responsive. The exhaust sounds deeper..
Liking it so far...
#15
I had a CAI with a K&N on my 330 and the MAF went bad. However, I think it was going out before the K&N was even on the car. I had a couple of check engine lights about 6 months previous, then went totally bad after the K&N was installed. I did remove the CAI before taking the car in for service though because I was afraid they would blame it. Put the CAI back on with the new MAF and never had any problems -- no issues on the 530 either.
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