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      04-25-2012, 02:44 PM   #1
UNDRPSR
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Thumbs up X6 50i airbox mod

I've had my X6 for about 6 mos now and like everyone else was completely annoyed at the way the air box was designed. I also just sold my E60 M5, and one of the first mods on that car was to remove the charcoal filter that is in addition to the regular filter. So, I asked around to see if anyone knew that this may be the same situation in our 50i's. Well, as you can imagine no one had a clue, and I've never seen one post about it on any forum. Curiosity got the better of me and I decided to see just how this thing is screwed together.

In short, what a PITA to get to the actual air filters which are integrated into 2 huge plastic airboxes. The good news, there are additional charcoal filters that you can remove to provide some additional airflow. Its been 3 months or so since I did this mod and have had no adverse effects or CEL's. I think it spools up a little quicker and i can get close to 15 mpg if I pay attention.

I now realize the delay in any vendor trying to produce a K&N type filter, its going to be way more involved then just simple drop ins like the X6M's. But you can get a little something if you're feeling adventurous !!

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      04-25-2012, 07:31 PM   #2
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Yeah BMW really worked hard to limit air flow on this engine. Supposedly Dinan is working on an airbox mod. I'd like to see more options out there...improving airflow on this engine would yield big results.

What tools are needed to get the airbox open? I'd like to take out the charcoal filters but the airbox doesn't have standard screws.
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      02-08-2013, 03:53 PM   #3
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Guys, you can buy the K N filter on their website now
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      03-24-2013, 08:12 PM   #4
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Quote:
Originally Posted by X6hamann View Post
Guys, you can buy the K N filter on their website now
Nope, still nothing.
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      06-10-2013, 11:29 PM   #5
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I took my charcoal filters out. It was a lengthy process but it was nice to learn how to get to the filters, if k and n ever release something. Rumor a while back was that Dinan was close to releasing a cai I wonder what happend to that......
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      06-11-2013, 09:23 AM   #6
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I took my charcoal filters out. It was a lengthy process but it was nice to learn how to get to the filters, if k and n ever release something. Rumor a while back was that Dinan was close to releasing a cai I wonder what happend to that......
I was searching around for a cold air intake for X6 for awhile, but had no luck.
It seems like X6 has so little after market parts compared to other cars like 3 series..
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      10-03-2013, 09:26 PM   #7
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Quote:
Originally Posted by zerrantoss
Quote:
Originally Posted by X6Vancouver View Post
I took my charcoal filters out. It was a lengthy process but it was nice to learn how to get to the filters, if k and n ever release something. Rumor a while back was that Dinan was close to releasing a cai I wonder what happend to that......
I was searching around for a cold air intake for X6 for awhile, but had no luck.
It seems like X6 has so little after market parts compared to other cars like 3 series..
+1 i was told from dinan last week very soon
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      10-18-2014, 12:18 PM   #8
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Reviving this thread because I recently purchased a 2012 X5 50i and I've been looking everywhere for an intake. I see 2 years after the "coming soon" statement from Dinan, there is still no intake available. So, for those who have taken out their charcoal filters, do you think there is any HP gain?
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      12-16-2014, 01:05 PM   #9
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Quote:
Originally Posted by 3X3=5 View Post
Reviving this thread because I recently purchased a 2012 X5 50i and I've been looking everywhere for an intake. I see 2 years after the "coming soon" statement from Dinan, there is still no intake available. So, for those who have taken out their charcoal filters, do you think there is any HP gain?
What you need to do is retrofit the airbox and plumbing from the X5M (S63) to the 50i. The air comes right through the grill and into the turbos. On the 50i it tales a three mile trip around the engine bay.

I'm convinced that is where a lot of the S63's extra power comes from.
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      12-16-2014, 11:01 PM   #10
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I agree, it's easy to imagine what gains could be had just from a better airflow path in the form of the X5M airbox. But it doesn't sound like anyone has done this so I assume it's not a direct fit for our cars. Has anyone been able to confirm that?

And no one has been brave enough to try just bolting on some piping drilled to house MAF sensors with some K&Ns on the end.
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      12-18-2014, 09:26 AM   #11
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The problem is that the sensors (MAF and TMAP???) are in different places. There are 4 in total.

The arrangement on the M5 is different as well. That may be something to consider. It looks more likely to work.

Here is M5 S63



And here is X5 N63

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