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      10-23-2020, 11:21 AM   #1
iconoclast
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K&N Drop-In Filter...

Does anyone on here know if K&N 33-3128 would fit X5 M50i? The angles at the very bottom look different. If these do not work any recommendation on which K&N will fit?

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      10-23-2020, 12:22 PM   #2
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A thread about K&N filters. I just flashed backed to 1995.
People still use those things over dry filters?
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      10-23-2020, 01:23 PM   #3
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Yes. I have installed high flow intake filters on nearly every car I have owned or own. No different than Dinan or BMC air filters. There are few bench flow tests with results on here showing improved airflow however I simply would like a louder engine note at WOT and am not looking for any real WHP gains.
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      10-25-2020, 04:50 PM   #4
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      10-26-2020, 12:16 PM   #5
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Have you seen this:

https://www.schmiedmann.com/en/bmw-x...ct=ACCDA85-150
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      10-26-2020, 12:35 PM   #6
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I have not but I would like to retain the OEM look however this may be a viable option down the road.

I did remove the charcoal emissions filters in the top half of the box and noticed there are two dummy flaps inside the lower half of the air box facing the firewall. I am sure they can be removed as well and it will improve the engine note but I believe it will suck in a great deal of hot air decreasing the output enough to be noticed. The filter you posted above may achieve the goal I am aiming for. Thanks for the lead and if I wind up purchasing I'll post details/review.

Additional filter discussion here for anyone who is curious:
https://g05.bimmerpost.com/forums/sh...php?p=26835977
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      01-21-2021, 11:36 AM   #7
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Finally something available:

M50i & X5M Fitment:

BMC code: FB01103

https://www.bmcairfilters.com/eng/ca...01103/1735/art
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      01-21-2021, 03:13 PM   #8
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Quote:
Originally Posted by iconoclast View Post
Finally something available:

M50i & X5M Fitment:

BMC code: FB01103

https://www.bmcairfilters.com/eng/ca...01103/1735/art
Does the M50i have the same intake as the X5M? They don't list the M50i as compatible, just the X5M and X5Mcs
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      01-21-2021, 05:24 PM   #9
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Quote:
Originally Posted by VTENGR View Post
Does the M50i have the same intake as the X5M? They don't list the M50i as compatible, just the X5M and X5Mcs
Click compatibility and you will see G05. It appears it does fit the M50i.
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      01-21-2021, 06:52 PM   #10
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I am fairly certain they are a match however I will test fit before I give official confirmation. I just need to find a vendor who can sell this to me since nobody has it or can get it.
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      01-22-2021, 07:49 AM   #11
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Quote:
Originally Posted by iconoclast View Post
I am fairly certain they are a match however I will test fit before I give official confirmation. I just need to find a vendor who can sell this to me since nobody has it or can get it.
Thanks - I've very interested in the before/after impressions. If you have a draggy, take some sample points from before and after.
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      01-22-2021, 07:51 AM   #12
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Quote:
Originally Posted by 130FeetDeep View Post
Click compatibility and you will see G05. It appears it does fit the M50i.
I was just questioning it because on the website when you look at the engine trims, it doesn't list M50i or 50i, just M and M competition.
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      01-22-2021, 11:03 AM   #13
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Quote:
Originally Posted by VTENGR View Post
I was just questioning it because on the website when you look at the engine trims, it doesn't list M50i or 50i, just M and M competition.
There always has been a strong belief despite the difference in part numbers that the filters were the same. It can be something as simple as a denser filtrate causing less air flow. BMW is known for trying to separate the numbers of the M as much as possible, so it could be a purposeful choke point that they put it. The fact that BMC lists G05 is almost a confirmation of that point.
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      01-22-2021, 11:05 AM   #14
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Exact same thing on the F15 vs. F85. Filters were identical shape but the media was different. M50i and X5M SHOULD share the same filter but I will confirm once I have one of these in my hand.
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