Charcoal Filters

Petersl63 · 10-14-2014, 10:19 PM

Hi Everyone,

What are the charcoal filters everyone always talks about removing, where are they located, how hard is it to remove them and are there horsepower gains and/or check engine light issues after this is done?

Thank you in advance.

templarklimek · 10-14-2014, 11:42 PM

They are in the air/filter intake box on both side, They require a PITA 90 degree tool. They are useless and suck HP because the KBG/EPA says so. remove them as the euro and Canadian M6's don't require them.

Keep in mind the EPA is staffed with Green Marxist who write laws to subjugate your liberty.

M6-Coupe · 10-15-2014, 12:50 AM

This may help!
http://f10.m5post.com/forums/showthread.php?t=797487

Twitch Massacre · 10-15-2014, 08:38 AM

They are useless grey colored filters inside the air boxes put there because California law requires them, they are located inside each of the air boxes, easy to remove except for one of the screws requires one very long right screwdriver, hp gains are there but it's hard to say how much really, no check engine light or anything of the sort.

M6-Coupe · 10-15-2014, 09:09 AM

Quote:

Originally Posted by Twitch Massacre

They are useless grey colored filters inside the air boxes put there because California law requires them, they are located inside each of the air boxes, easy to remove except for one of the screws requires one very long right screwdriver, hp gains are there but it's hard to say how much really, no check engine light or anything of the sort.

Twitch, I have seen many people in M5 forum have removed this filter and claim the HP gain as you did. Did you remove it? The gain in HP is noticeable? how it affect the throttle response? I know its useless and as you said it's because of California law since European versions and even Canadian ones do not have this filter, but I'm wondering if there is any code in ECU related to this change for US version to affect something else in case of removal!

Twitch Massacre · 10-15-2014, 12:51 PM

Quote:

Originally Posted by M6-Coupe

Quote:

Originally Posted by Twitch Massacre

They are useless grey colored filters inside the air boxes put there because California law requires them, they are located inside each of the air boxes, easy to remove except for one of the screws requires one very long right screwdriver, hp gains are there but it's hard to say how much really, no check engine light or anything of the sort.

Twitch, I have seen many people in M5 forum have removed this filter and claim the HP gain as you did. Did you remove it? The gain in HP is noticeable? how it affect the throttle response? I know its useless and as you said it's because of California law since European versions and even Canadian ones do not have this filter, but I'm wondering if there is any code in ECU related to this change for US version to affect something else in case of removal!

Yeah I removed it. The only thing I could really tell a difference with without dynoing the car was that I could hear the turbo spool clearer after removal.

bigbrian · 10-15-2014, 07:34 PM

I would say maximum you are looking at 1hp or something minuscule. They really serve to purpose being there other than some law requiring them to be on the car when it's sold. You might as well remove them so the car can breathe easier -- no point in keeping them in place.

Brian

Leveraged Sellout · 11-01-2014, 12:45 PM

Quote:

Originally Posted by templarklimek

They are in the air/filter intake box on both side, They require a PITA 90 degree tool. They are useless and suck HP because the KBG/EPA says so. remove them as the euro and Canadian M6's don't require them.

Keep in mind the EPA is staffed with Green Marxist who write laws to subjugate your liberty.

Seriously. You know the joke about environmentalists...they're green on the outside and Red on the inside.

C's Bimmer · 11-01-2014, 02:22 PM

BMC Filters are all I use on my M5, M6 and Cayenne GTS.

10-14-2014, 10:19 PM	#1
Petersl63 New Member 0 Rep 14 Posts Drives: F12 M6 997tt Join Date: Jul 2014 Location: Toronto iTrader: (0)	Charcoal Filters Hi Everyone, What are the charcoal filters everyone always talks about removing, where are they located, how hard is it to remove them and are there horsepower gains and/or check engine light issues after this is done? Thank you in advance.
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10-14-2014, 11:42 PM	#2
templarklimek templarklimek 141 Rep 868 Posts Drives: 15' X6M, 12' R8 V10, Join Date: Jun 2008 Location: Houston Texas iTrader: (0)	They are in the air/filter intake box on both side, They require a PITA 90 degree tool. They are useless and suck HP because the KBG/EPA says so. remove them as the euro and Canadian M6's don't require them. Keep in mind the EPA is staffed with Green Marxist who write laws to subjugate your liberty.
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10-15-2014, 12:50 AM	#3
M6-Coupe Major General 1125 Rep 6,067 Posts Drives: F92 M8 Join Date: Feb 2014 Location: Bay area iTrader: (0)	This may help! http://f10.m5post.com/forums/showthread.php?t=797487 __________________ Current : 2020 F92 Black Sapphire M8 - ZF8 Gone : 2018 F80 Mineral Gray M3 - 6MT Gone : 2016 F82 Austin Yellow M4 - 6MT Gone : 2013 F13 Sakhir Orange M6 -7DCT Gone: 2013 F13 Alpine White 650i -ZF8
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10-15-2014, 08:38 AM	#4
Twitch Massacre Major 320 Rep 1,299 Posts Drives: 2015 BMW i8 Join Date: Jan 2014 Location: Miami, FL iTrader: (0) Garage List I12 BMW i8 [0.00] F13 BMW M6 [0.00]	They are useless grey colored filters inside the air boxes put there because California law requires them, they are located inside each of the air boxes, easy to remove except for one of the screws requires one very long right screwdriver, hp gains are there but it's hard to say how much really, no check engine light or anything of the sort. __________________ 2015 BMW i8 in Matte Metallic Grey: H&R Springs 21" ADV.1 ADVNL2 MV2 CS Wheels Coming Soon: 2016 BMW M4 GTS De-Winged and Bagged on 22s
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10-15-2014, 07:34 PM	#7
bigbrian riding on rails 117 Rep 655 Posts Drives: 2o13 m6 f13 Join Date: Apr 2014 Location: wichita kansas iTrader: (0)	I would say maximum you are looking at 1hp or something minuscule. They really serve to purpose being there other than some law requiring them to be on the car when it's sold. You might as well remove them so the car can breathe easier -- no point in keeping them in place. Brian __________________ /// 2o13 m6 f13 . jb4 tuned . meth injected . msr intake . 21" adv1 wheels . eisenmann race w/ catless DPs . vorsteiner full aero . accuair e-level w/ bagged KW V3 struts . dinan sways . bel stir+ w/ alp jammer . jl audio subs /// 2o13 x5m e70 . velos tuned . 22" adv1 wheels . dropped on kw variant3 coilovers . passport 9500ci radar & jammer. gets groceries fast
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11-01-2014, 02:22 PM	#9
C's Bimmer Lieutenant 77 Rep 452 Posts Drives: '15 M6 GC,'08 M5,'14 958 GTS Join Date: Apr 2010 Location: NY iTrader: (0)	BMC Filters are all I use on my M5, M6 and Cayenne GTS. __________________ Current Garage: 2015 Singapore Grey F06 M6 Gran Coupe (The Beast) 2014 Black Cayenne GTS 958 (Wife & Kids Beast) *2008 Imola Red E60 M5 (My Other Beast)
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