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      05-22-2020, 05:55 AM   #45
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It would appear my 50i (not M50i) does not have a charcoal filter, just regular OEM filter (see attached photo). Perhaps this is different from the M50i. I did a charcoal filter delete on my F80 back in the day and could feel the ever so slight difference.

The question remains, I wonder if the KN filters for the M550 would fit my air boxes if they didn't fit the M50s? Might give it a shot.

This just highlights the pretty vast difference between the N63R and B. The latest iteration of the N63 in the M50 is designed more like the S63 with the air boxes
Interesting. The dimensions look really close to the M550i filters. Might be worth asking Nine to measure to dimension of the angle and thin top to verify?
I was thinking the same thing, they do look very similar. Hopefully 914 could throw some dimensions my way. That top part looks wider then the M50s and more In line with the M550s. I'd be shocked if it were any different then the M550s to be honest.

ARM Motorsports has a front mounted cold air intake kit for the N63TU for $500. I'm giving that some deep consideration but not sure if it would be compatible with the latest generation of the N63TU3 in your guys M50s.

Just have to weight the pros and cons. I doubt I'd get any performance gains, if not a slight performance loss. But the turbo sounds would be cool!
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      05-22-2020, 06:41 AM   #46
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I was thinking the same thing, they do look very similar. Hopefully 914 could throw some dimensions my way. That top part looks wider then the M50s and more In line with the M550s. I'd be shocked if it were any different then the M550s to be honest.
Here you go. It doesn't help the M50i folks any.... but hopefully it's helpful
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      05-22-2020, 06:49 AM   #47
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The EU models don't have the extra charcoal air filters, only the paper ones. I've tried today to remove them and they are not there
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      05-22-2020, 07:47 AM   #48
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Removed my charcoal filters this am will go for a drive later to see if anything feel different
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      05-22-2020, 08:08 AM   #49
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The EU models don't have the extra charcoal air filters, only the paper ones. I've tried today to remove them and they are not there
You know what? That is an interesting little nugget of knowledge.

I have noticed from several sources, that quite often, the M50i models show a 530hp rating.... whereas often I see them with a 523hp rating. Remember the AutotopNL youtube video? That M50i he said was rated at 530.

I wonder.... if it's a Euro vs US version.... and I wonder if it's BECAUSE of those charcoal filters?

I don't think a 7hp increase is out of the question, when you consider you're removing half the airflow restriction.
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      05-22-2020, 08:34 AM   #50
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Originally Posted by Ninefourteener View Post
You know what? That is an interesting little nugget of knowledge.

I have noticed from several sources, that quite often, the M50i models show a 530hp rating.... whereas often I see them with a 523hp rating. Remember the AutotopNL youtube video? That M50i he said was rated at 530.

I wonder.... if it's a Euro vs US version.... and I wonder if it's BECAUSE of those charcoal filters?

I don't think a 7hp increase is out of the question, when you consider you're removing half the airflow restriction.
The 530 hp rating is the German/EU 'PS' metric horsepower equivalent to US 523 hp.
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      05-22-2020, 08:46 AM   #51
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Originally Posted by Ninefourteener View Post
You know what? That is an interesting little nugget of knowledge.

I have noticed from several sources, that quite often, the M50i models show a 530hp rating.... whereas often I see them with a 523hp rating. Remember the AutotopNL youtube video? That M50i he said was rated at 530.

I wonder.... if it's a Euro vs US version.... and I wonder if it's BECAUSE of those charcoal filters?

I don't think a 7hp increase is out of the question, when you consider you're removing half the airflow restriction.
The 530 hp rating is the German/EU 'PS' metric horsepower equivalent to US 523 hp.
True. What i've also noticed now is that the EU OPFs are now integrated in the cats starting with MY20. Mine was fabricated in 08.2019 and the OPFs where before the mid-pipe (which i've removed when tuned it and lost it). I've ordered a new mid-pipe from the dealer based on my VIN and he said that info.

LE: pic attached: stock exhaust vs the new one from dealer
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      05-22-2020, 08:59 AM   #52
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The plot gets thicker lol.

Either way.... I'm glad I removed them, and I'm glad some other folks are motivated to do the same. I haven't even driven my car yet. Yesterday, I did the whole intake thing.... and then in the afternoon, I did it's first oil change with a writeup on the maintenance sub-forum.

I'm not sure if I'll notice a difference or not.... but I'm pretty sure it has to be worth at least a few hp. Probably only at the high Rpm range though, in which case it will be undetectable by the "butt-dyno"

I'm not going to do anything with the emissions system..... yet. Eventually, I'll be bringing this car with me when I rotate back to the US, and I'm unsure where I'll end up, what the state laws will be, what the inspection requirements will be, or even what the US re-importation requirements will be. Too much of a risk to mess with that stuff now.

Looking at that exhaust though.... I definitely do NOT have those on my car. I was just under it yesterday when I was changing my oil, and I was eyeballing the resonator for possible delete. I would have noticed those.

As soon as I (hopefully) make my way to TX or FL..... downpipes, and maybe even a turbo upgrade if anything is available by then.

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      05-22-2020, 08:06 PM   #53
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Quote:
Originally Posted by Ninefourteener View Post
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Originally Posted by JackB316 View Post
I was thinking the same thing, they do look very similar. Hopefully 914 could throw some dimensions my way. That top part looks wider then the M50s and more In line with the M550s. I'd be shocked if it were any different then the M550s to be honest.
Here you go. It doesn't help the M50i folks any.... but hopefully it's helpful
Thanks 914.
Good news for the 50i guys, the air filter measurements are indeed the same (just confirmed) and should be compatible with no issue.
Question remains, do I get the K&N filters or do a new intake system. Have to weigh the pros and cons.
What are you guys with M50s doing?
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      05-22-2020, 08:20 PM   #54
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Originally Posted by JackB316 View Post
Thanks 914.
Good news for the 50i guys, the air filter measurements are indeed the same (just confirmed) and should be compatible with no issue.
Question remains, do I get the K&N filters or do a new intake system. Have to weigh the pros and cons.
What are you guys with M50s doing?
The intake filter design actually has held up quite well on the N/S63. A lot of the F10 & F90 M5 guys are throwing down big power with stock box and charcoal delete / K&N. My 2 cents is that a full intake will definitely give you better sound and spool noises if you want that, but performance improvement over upgraded filters may not be tangible.
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      05-22-2020, 11:20 PM   #55
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Quote:
Originally Posted by 130FeetDeep View Post
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Originally Posted by JackB316 View Post
Thanks 914.
Good news for the 50i guys, the air filter measurements are indeed the same (just confirmed) and should be compatible with no issue.
Question remains, do I get the K&N filters or do a new intake system. Have to weigh the pros and cons.
What are you guys with M50s doing?
The intake filter design actually has held up quite well on the N/S63. A lot of the F10 & F90 M5 guys are throwing down big power with stock box and charcoal delete / K&N. My 2 cents is that a full intake will definitely give you better sound and spool noises if you want that, but performance improvement over upgraded filters may not be tangible.
Agreed. It'd just be for noise. I fear possibly a performance loss which I'm not a fan of. A lot of these new air box designs from the factory are quite impressive, minus all the restrictive filters
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      05-23-2020, 05:29 AM   #56
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Quote:
Originally Posted by JackB316 View Post
Thanks 914.
Good news for the 50i guys, the air filter measurements are indeed the same (just confirmed) and should be compatible with no issue.
Question remains, do I get the K&N filters or do a new intake system. Have to weigh the pros and cons.
What are you guys with M50s doing?
Currently.... the M50i guys are doing NOTHING..... LOL.

Except maybe removing the charcoal filters. Currently, no one makes anything (not even a K&N) for the M50i. Can't stay that way forever though. Eventually we'll see something.
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      05-23-2020, 12:50 PM   #57
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Quote:
Originally Posted by Ninefourteener View Post
Quote:
Originally Posted by JackB316 View Post
Thanks 914.
Good news for the 50i guys, the air filter measurements are indeed the same (just confirmed) and should be compatible with no issue.
Question remains, do I get the K&N filters or do a new intake system. Have to weigh the pros and cons.
What are you guys with M50s doing?
Currently.... the M50i guys are doing NOTHING..... LOL.

Except maybe removing the charcoal filters. Currently, no one makes anything (not even a K&N) for the M50i. Can't stay that way forever though. Eventually we'll see something.
Is there any similar aftermarket support for the M850 that would transfer over to the M50s?

Not sure why but many of the aftermarket suppliers have been slow with support for the G05 chassis in general, a real disappointment.
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      05-23-2020, 01:51 PM   #58
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Is there any similar aftermarket support for the M850 that would transfer over to the M50s?

Not sure why but many of the aftermarket suppliers have been slow with support for the G05 chassis in general, a real disappointment.
RK lists an intake that fits the M850i. That might be of interest?

I am still not convinced an intake is good bang for the buck on this vehicle. K&N plus charcoal delete likely can flow well for the power levels we all want.
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      05-23-2020, 02:36 PM   #59
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Quote:
Originally Posted by 130FeetDeep View Post
Quote:
Originally Posted by JackB316 View Post
Is there any similar aftermarket support for the M850 that would transfer over to the M50s?

Not sure why but many of the aftermarket suppliers have been slow with support for the G05 chassis in general, a real disappointment.
RK lists an intake that fits the M850i. That might be of interest?

I am still not convinced an intake is good bang for the buck on this vehicle. K&N plus charcoal delete likely can flow well for the power levels we all want.
Agreed with you there.

I'm gonna be placing an order for the M550 K&Ns today. I think the stock airbox design overall is sufficient. 👍🏻
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      05-23-2020, 02:40 PM   #60
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Is there any similar aftermarket support for the M850 that would transfer over to the M50s?
Maybe..... but definitely not intake systems. They are completely different layouts.

M850i first
X5M50i second
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      05-23-2020, 03:41 PM   #61
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Is there any similar aftermarket support for the M850 that would transfer over to the M50s?
Maybe..... but definitely not intake systems. They are completely different layouts.

M850i first
X5M50i second
Wow that is a difference! BMW makes everything so tough
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      05-23-2020, 04:56 PM   #62
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Maybe..... but definitely not intake systems. They are completely different layouts.

M850i first
X5M50i second
Great catch. The angle on the pipes is wayyy different. I wonder if their filter is the same as the M50i? I can’t find the part listed online.
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