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K&N Air Filter replacement...worth it..??

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Old 06-26-2011, 08:19 AM
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Looking into changing filter or airbox on an '07 550i...thoughts and suggestions appreciated. thanks in advance.
Old 06-26-2011, 01:59 PM
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If you want to upgrade your drop in filter, I've heard good things about the BMS filter. Just be aware that no matter what drop in filter you get, you will see minimal to no change at all.
Old 06-26-2011, 02:25 PM
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Persian probably meant BMC.

I have K&N for my car, and I felt the car shifted smoother after the change, with possible gain in power. Then again, I am pretty sensitive to change, so it may not be perceptible to everyone.
Old 06-26-2011, 02:42 PM
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Originally Posted by nomis_nehc
Persian probably meant BMC.

I have K&N for my car, and I felt the car shifted smoother after the change, with possible gain in power. Then again, I am pretty sensitive to change, so it may not be perceptible to everyone.
Yeah sorry I meant BMC lol, you must have the new updated firmware on your butt dyno nomis. jk!
Old 06-26-2011, 04:10 PM
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I think BMC is better, just my opinion. I got mine from Nerweezy.
Old 06-26-2011, 04:39 PM
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I am not sure if out MAF sensors are as sensitive as some of my other vehicles or not. However I have ruined a few sensors in my EVO because of oiled filters, so I have jumped off of the K&N bandwagon that I loved so much, and moved on to high flow dry filters.
Old 06-26-2011, 04:45 PM
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Originally Posted by mbawazir
I think BMC is better, just my opinion. I got mine from Nerweezy.
thanks for the support. also if interested in the BMC filter, there is a package available consisting of the BMC filter and the RPI scoop available
Old 06-27-2011, 10:48 AM
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I tried the k&n, stick with stock air filter. You lose power with the k&n.
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