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      02-07-2015, 01:48 PM   #23
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Quote:
Originally Posted by Mike_L View Post
The open one. Magnum Force Stage 2, PN 51-12202. Have their little scoop too, but I'm gonna have to do some work to make it fit my F34.

Love the sound, the motor seems to want to rev to the moon in Sport, but I can't let it yet (only 675 miles, not broken in. Soon).
Just to clarify, you have the dry cone?
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      02-07-2015, 02:04 PM   #24
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Originally Posted by Vegetable View Post
Just to clarify, you have the dry cone?
Yes. When available I always get the dry one. Reduces the risk of fouling the MAF.
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      02-09-2015, 07:54 PM   #25
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First, I am assuming we agree that MPPK or not the air filter element is the same. With this assumption, the only debate is on the dirty side of the filter.

Looking at the intake tract, it is easy to show how the MPPK lower airbox provides a much larger air inlet than the OE setup. Part 15 in the image below shows a small “intake grill” that is only 50% open! Sure BMW’s engineers could have specified that dealers remove that grill as part of the MPPK, but all the man hours would be unacceptably expensive. The cheap and easy way to open up the inlet to the air filter was to go old school and just punch a hole in the lower airbox. This results in an easy 300% larger opening… How can this not be an improvement over OE?

Please note I am not making any comparisons to a “proper” aftermarket intake. Thanks.

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      02-09-2015, 08:22 PM   #26
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Its open, but I'm not sure if its taking in any extra air. That hole is facing the back of the headlight, and theres not a lot of space back there for air flow. I think the hole is purely for sound, not for induction.

The grille is stupid. I'm gonna gut that when I install the aFe scoop. Need the frame to hold the scoop in place, so I'll just cut out the mesh.

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      02-09-2015, 08:27 PM   #27
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Quote:
Originally Posted by Mike_L View Post
Its open, but I'm not sure if its taking in any extra air. That hole is facing the back of the headlight, and theres not a lot of space back there for air flow. I think the hole is purely for sound, not for induction.
Are you saying you don't think the engine can flow any more air than what can pass through that little intake grill?

BTW... The intake grill is actually taking advantage of a positive air pressure area in front of the radiator (behind the kidneys).
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      02-09-2015, 08:36 PM   #28
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Quote:
Originally Posted by glennQNYC View Post
Are you saying you don't think the upper-portion/clean-side of the airbox can flow any more air than what can pass through that little intake grill?
I'm sure it can, but wheres it gonna get the air from? Unless you gut the bottom of the box, it really doesn't have anywhere to get it from. Maybe on the track you could pull the headlight to use the side inlet, but with the light in place, theres not much space for air to get in. I think thats the point of the little red insert. To block the intake from hot engine bay air.

If I had a stock box, I'd gut it to see what happens. But the MPPK box is pretty pricey, so I'm not cutting it up.
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      02-09-2015, 08:40 PM   #29
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Quote:
Originally Posted by Mike_L View Post
I'm sure it can, but wheres it gonna get the air from? Unless you gut the bottom of the box, it really doesn't have anywhere to get it from. Maybe on the track you could pull the headlight to use the side inlet, but with the light in place, theres not much space for air to get in. I think thats the point of the little red insert. To block the intake from hot engine bay air.

If I had a stock box, I'd gut it to see what happens. But the MPPK box is pretty pricey, so I'm not cutting it up.
Are we agreeing the MPPK airbox provides a larger opening than the OE airbox? Assuming yes, are you saying this is good; bad; or makes no difference?
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      02-09-2015, 08:59 PM   #30
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Quote:
Originally Posted by glennQNYC View Post
Are we agreeing the MPPK airbox provides a larger opening than the OE airbox? Assuming yes, are you saying this is good; bad; or makes no difference?
Yes, the opening is larger. I'm not sure if it makes a difference though.

The only way to know if it makes a difference is to do pressure testing in the bottom of the box, to see if theres a vacuum being created at WOT, and if there is, if its any different with the different airboxes. No vacuum, no restriction from the box or ductwork. Could also test it further up the line to see restrictions there.
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      02-10-2015, 04:06 AM   #31
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When I fitted my AFE ram air scoop on my m135i, the intake grille [part # 15] was 100% pass thru mesh, not 50% as implied in an earlier post.
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      02-10-2015, 05:32 AM   #32
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Well the opening imo is only to get some additional sound like you get from an open intake. Most air will come from the normal entry.
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      02-10-2015, 07:07 AM   #33
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I know this thread has moved on a bit from the original topic of the carbon filter glued to the paper filter in these pictures, but I just wanted to note that I got the MPPK installed in my 2014 (Manufacture date 5/14) 335 yesterday and it did NOT have the carbon portion of the filter. I specifically checked for it this morning before I left for work. I was all ready to order a K&N filter, but I might hold off for a while now because I don't have the carbon filter.

I can also see what my buddy has in his M235. I would assume he has the same intake as the MPPK, but I could be wrong.

Quote:
Originally Posted by Mike_L View Post
I see a lot of people with the MPPK saying they have an intake. Sure, its an intake, but not a performance one. Know why? Because of the filter. Its a double filter (paper and carbon, glued together) and is restrictive as hell. Making the motor breathe through this is not gonna make power. At least put in a K&N before you claim that the MPPK intake is better than the stock one, because they both use the same crappy filter and they both suck. BMW has been using these double filters on their motors since they started using turbos, and they're the worst thing in the world for performance.







I hope this clarifies things.


EDIT: Oh yeah. Replacement is K&N P/N 33-2997. MRP is $51.99, so thats probably as cheap as you'll find it.
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      02-10-2015, 01:38 PM   #34
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Quote:
Originally Posted by Bee Pee
When I fitted my AFE ram air scoop on my m135i, the intake grille [part # 15] was 100% pass thru mesh, not 50% as implied in an earlier post.
I do not understand. 100% would mean the opening was completely open and did not have any mesh at all.
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      02-10-2015, 01:45 PM   #35
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Quote:
Originally Posted by Darkhold
Well the opening imo is only to get some additional sound like you get from an open intake. Most air will come from the normal entry.
This is an extremely simple concept guys... A larger opening to the engine's intake will allow more air to enter the engine. For anyone to dispute this they would have to believe the opening of the OE airbox was already providing more air than the engine could use.
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      02-10-2015, 01:48 PM   #36
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I added MPPK after break in, but my filter doesn't have that layer of felt either.
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      02-10-2015, 02:21 PM   #37
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Quote:
Originally Posted by glennQNYC View Post
I added MPPK after break in, but my filter doesn't have that layer of felt either.
Pull the filter up. The cloth was on the bottom of mine in the MPPK.
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      02-10-2015, 03:24 PM   #38
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Quote:
Originally Posted by R_C_S_435i_GC View Post
Pull the filter up. The cloth was on the bottom of mine in the MPPK.
Yeah, that faces down. I just flipped it for the pics.
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      02-10-2015, 05:37 PM   #39
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Quote:
Originally Posted by R_C_S_435i_GC
Quote:
Originally Posted by glennQNYC View Post
I added MPPK after break in, but my filter doesn't have that layer of felt either.
Pull the filter up. The cloth was on the bottom of mine in the MPPK.
I feel like my intelligence is under assault in this thread, but I digress...

No felt layer on my filter.
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      02-10-2015, 10:00 PM   #40
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i don't have MPPK in mine (2015 435i conv) but i just check and its there ( the carbon thing). I also notice that there is an opening like in the air box of the MPPK but its a little different since its design to open and close with acceleration (i think) because its basically the same hole but with a restrictive lid that opens with push. (i don't really know if that is standard) i thought NON MPPK had no hole in the air box (also the hole its not red, its all black). So question, is that mechanism standard or new for 2015?
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      02-11-2015, 06:55 AM   #41
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Quote:
Originally Posted by glennQNYC View Post
I feel like my intelligence is under assault in this thread, but I digress...

No felt layer on my filter.
I also re-checked my filter this morning and there is no felt layer in my airbox. It is not attached to the filter, and it is not laying anywhere in the box.
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      02-11-2015, 07:51 AM   #42
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For those who have looked inside their stock airbox do you remember seeing dirt at the bottom? Supposedly the design of the box is really good at dropping larger stuff out so it doesn't have to get trapped by the filter.
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      02-11-2015, 08:00 AM   #43
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Quote:
Originally Posted by glennQNYC View Post
I do not understand. 100% would mean the opening was completely open and did not have any mesh at all.
mesh was present but none of it blocked off
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      02-11-2015, 08:13 AM   #44
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'15 435i M-Sport, no MPPK and I have the carbon(?) / felt (?) secondary filter.
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