K&N air filter and Charcoal delete illegal in CA?

Eagle1oh7 · 04-02-2014, 03:11 PM

Just do it. Or get a Eurobox or AFE Stage2Si and keep the stock box.

Dylanize · 04-02-2014, 03:16 PM

I'm sure you will be fine man, it's effects are probably slim to none. CUT IT OUT!

sd_luis · 04-02-2014, 03:20 PM

Quote:

Originally Posted by Eagle1oh7

Just do it. Or get a Eurobox or AFE Stage2Si and keep the stock box.

not really a big fan of spending $400-500 in something like that for minor performance. in another note, cool you are from chula vista me too! lol

sd_luis · 04-02-2014, 03:21 PM

Quote:

Originally Posted by Dylanize

I'm sure you will be fine man, it's effects are probably slim to none. CUT IT OUT!

it's already on the list to do's! lol
first paint my m3 rep bumper, then replace spark plugs and while at it do the filter and maybe paint the engine cover, don't know yet lol

Eagle1oh7 · 04-02-2014, 03:33 PM

Quote:

Originally Posted by sd_luis

not really a big fan of spending $400-500 in something like that for minor performance. in another note, cool you are from chula vista me too! lol

I suppose, but those two boxes yield the most gains out of all of the ones out there. Yeah man, I just moved to the area last Christmas, see quite a few 325i rolling around these parts lol

Nebraska330xi · 04-02-2014, 04:15 PM

It won't affect emissions (for sure not the filter).

The charcoal filter is meant to trap gasses that try and escape after you turn off the car or something to that effect. It stops doing that after a while because charcoal can only absorb so much.

I might have noticed it for a day when I did drop in and filter delete. Its fun to mess around with the car regardless.

andrey_gta · 04-02-2014, 04:24 PM

Charcoal filter is there so that emissions don't escape from intake manifold. Thats a very small thing, and doesnt impact exhaust gas sniffer tests.

Taskmaster · 04-02-2014, 05:07 PM

Might have a K&N for sale that came with my Dinan kit, let me know.

BTW, the carcoal filter removal was 2hp more than a stock box with it still intact. Both boxes had the K&N filter in them.

mike-y · 04-02-2014, 05:34 PM

Quote:

Originally Posted by sd_luis

cool man thanks! exactly the answer I was looking for lol any difference or issues you had doing this?

yeah, I think I noticed a small difference with the filter swap and charcoal delete. little better throttle response, iirc. never dyno'd it, but Axiom says 2hp, so that's good enough to me.

kobeballer96 · 04-03-2014, 05:26 AM

The K&N is a replacement filter big fucking whoop. I can't believe this is a thread. -----OUT

sd_luis · 04-03-2014, 09:06 AM

Quote:

Originally Posted by kobeballer96

The K&N is a replacement filter big fucking whoop. I can't believe this is a thread. -----OUT

Oh no way!!! Is it a filter? I thought it was some kind of turbo to boost my horsepower up to 100 more !

Learn how to read before posting your retarded comments on my thread

Takeshi · 04-03-2014, 11:58 AM

Quote:

Originally Posted by TheAxiom

Might have a K&N for sale that came with my Dinan kit, let me know.

BTW, the carcoal filter removal was 2hp more than a stock box with it still intact. Both boxes had the K&N filter in them.

That is interesting especially when you combine that information with the thread below
http://www.e90post.com/forums/showthread.php?t=602806

This member showed a 15 CFM increase in airflow when the charcoal filter is removed. But when the OEM paper filter is replaced with the K&N drop in, there was a 129 CFM increase in airflow.

If a 15 CFM increase from charcoal delete gets you 2 whp, then a 129 CFM increase from the K&N drop in gets you [(129/15)x2] = 17.2 whp?? LOL

Ok seriously though, I'm sure we're not getting an extra 20 horses at the crank from this. But I am curious what the gains are from the K&N drop in alone. It's got to be at least equal the the charcoal delete based on what that person showed with the air flow results. So maybe 4 whp total from K&N drop in and charcoal delete? Which is about 5 crank hp. That's on par with your average aftermarket intake or exhaust.

kobeballer96 · 04-03-2014, 12:14 PM

Quote:

Originally Posted by sd_luis

Oh no way!!! Is it a filter? I thought it was some kind of turbo to boost my horsepower up to 100 more !

Learn how to read before posting your retarded comments on my thread

I did in fact read. Maybe you should think before firing back lol. Read your own thread tittle. Is it illegal? Why would it be? it's a REPLACEMENT filter.

Taskmaster · 04-03-2014, 12:16 PM

Quote:

Originally Posted by Takeshi

That is interesting especially when you combine that information with the thread below
http://www.e90post.com/forums/showthread.php?t=602806

This member showed a 15 CFM increase in airflow when the charcoal filter is removed. But when the OEM paper filter is replaced with the K&N drop in, there was a 129 CFM increase in airflow.

If a 15 CFM increase from charcoal delete gets you 2 whp, then a 129 CFM increase from the K&N drop in gets you [(129/15)x2] = 17.2 whp?? LOL

Ok seriously though, I'm sure we're not getting an extra 20 horses at the crank from this. But I am curious what the gains are from the K&N drop in alone. It's got to be at least equal the the charcoal delete based on what that person showed with the air flow results. So maybe 4 whp total from K&N drop in and charcoal delete? Which is about 5 crank hp. That's on par with your average aftermarket intake or exhaust.

Sounds reasonable, if not completely correct. Especially the last part.

Dylanize · 04-03-2014, 12:17 PM

Quote:

Originally Posted by kobeballer96

I did in fact read. Maybe you should think before firing back lol. Read your own thread tittle. Is it illegal? Why would it be? it's a REPLACEMENT filter.

Maybe you should read again... He's clearly asking if removing the charcoal filter is illegal AKA making him fail the Cali sniffer test.

sd_luis · 04-03-2014, 02:04 PM

Quote:

Originally Posted by Dylanize

Maybe you should read again... He's clearly asking if removing the charcoal filter is illegal AKA making him fail the Cali sniffer test.

Thanks for explaining that to him.

sd_luis · 04-03-2014, 02:23 PM

Quote:

Originally Posted by kobeballer96

I did in fact read. Maybe you should think before firing back lol. Read your own thread tittle. Is it illegal? Why would it be? it's a REPLACEMENT filter.

"Is it illegal to remove the charcoal filter" lol thanks for your input though now we know that the k&n is a REPLACEMENT filter. good job!

mike-y · 04-03-2014, 03:37 PM

Quote:

Originally Posted by Takeshi

This member showed a 15 CFM increase in airflow when the charcoal filter is removed. But when the OEM paper filter is replaced with the K&N drop in, there was a 129 CFM increase in airflow.

If a 15 CFM increase from charcoal delete gets you 2 whp, then a 129 CFM increase from the K&N drop in gets you [(129/15)x2] = 17.2 whp?? LOL

well, he was using a leaf blower, so it's still unknown exactly what the CFM gains would be while everything is still on the car, in actual running conditions. But I agree that there *should* be some increase in flow with a K&N, and also with the charcoal delete. probably not much, but something.

Grant@JGMODS · 04-04-2014, 01:20 PM

Quote:

Originally Posted by sd_luis

Hello, I've seen a lot of post of doing this. I'm getting poor gas mileage on my e90 and thinking of doing a tune up and while I'm at it try this out. As far as I'm concern you get impressive throttle response and it gives it a better gas mileage. However, I'm iffy that it might not pass the smog here in CA. Has anyone done that on there vehicle and passed the smog? thanks

p.s. any don't and do's are welcome! (:

Like others have said already, you will pass smog. I have my charcoal filter deleted with the K&N drop in air filter and have passed smog twice already, the most recent being this year in January.

sd_luis · 04-04-2014, 01:25 PM

Quote:

Originally Posted by Grant@JGMODS

Like others have said already, you will pass smog. I have my charcoal filter deleted with the K&N drop in air filter and have passed smog twice already, the most recent being this year in January.

Thanks. I have already order the filter and looking forward on doing this

I was just concern that it wouldn't pass smog, but it seems that is not a problem! thank you and everybody who helped out

mike-y · 04-04-2014, 03:05 PM

the only thing you need to worry about is if your K&N is the typical oiled filter type. When you clean it, and re-oil it - don't spray too much oil on it or it will get on your MAF sensor and cause your car to not run as well.

but it's always a good idea to spray/clean the sensor with MAF cleaner a couple of times a year anyway.

Casca · 04-04-2014, 08:36 PM

My charcoal screen is deleted and I have afe dry filter in place. Just had it smogged two weeks ago in California, no problems. Also running PE exhaust.

They just go through the OBD2 now and check your O2 sensors for faults....I think. Took them less than 10 minutes and cost $69. Not sure I agree with the cost. Really all they did is connect a code reader and checked that I am not putting out O2 fault codes. Easy money for them I guess.

Wonder if this can be made self-serve.

04-02-2014, 03:11 PM	#23
Eagle1oh7 Lieutenant Colonel 287 Rep 1,710 Posts Drives: '11 328i Sedan Join Date: Oct 2012 Location: Chula Vista CA iTrader: (0)	Just do it. Or get a Eurobox or AFE Stage2Si and keep the stock box. __________________ DONE: Seibon CF Hood, M3 Rep, MSport rear w/DD CF Diffuser, M3 Rep Skirts, Seibon CSL trunklid, Forgestar F14 18s w/Michelin PSS, Eisenmann catback, AA Headers, BPC Stage 2, Charcoal Delete+revMotor+AFE Drop In filter FUTURE MODS: LED headlights, CF rooftop, M3 Suspension Conversion, Dinan CAI Mod
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04-02-2014, 03:16 PM	#24
Dylanize Captain Dutch Rudder 204 Rep 2,258 Posts Drives: AMG Join Date: Jan 2013 Location: Charlotte, NC iTrader: (8)	I'm sure you will be fine man, it's effects are probably slim to none. CUT IT OUT! __________________ No more E92 or E82
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04-02-2014, 04:15 PM	#28
Nebraska330xi Lieutenant 42 Rep 551 Posts Drives: 2006 330xi Sonora Join Date: Apr 2013 Location: Nebraska iTrader: (1)	It won't affect emissions (for sure not the filter). The charcoal filter is meant to trap gasses that try and escape after you turn off the car or something to that effect. It stops doing that after a while because charcoal can only absorb so much. I might have noticed it for a day when I did drop in and filter delete. Its fun to mess around with the car regardless. __________________ 2006 Sonora Metallic 330xi. DIY: Charcoal Delete, K
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04-02-2014, 04:24 PM	#29
andrey_gta Brigadier General 298 Rep 4,040 Posts Drives: 130i coupé ;) Join Date: Nov 2011 Location: Bimmerpost iTrader: (1) Garage List 2008 BMW 128i [10.00]	Charcoal filter is there so that emissions don't escape from intake manifold. Thats a very small thing, and doesnt impact exhaust gas sniffer tests. __________________ 128i Sport 6MT converted to Euro 130i spec, 3.73 diff, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE In-progress: //M front arm, M3 rack, e36M lip Wishlist: Coils, n55 mnts, headers, LSD, e60 finn diff "The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is
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04-02-2014, 05:07 PM	#30
Taskmaster Banned 2465 Rep 9,004 Posts Drives: M235i 6MT / E92 328 Msport 6MT Join Date: Nov 2013 Location: Florida iTrader: (6)	Might have a K&N for sale that came with my Dinan kit, let me know. BTW, the carcoal filter removal was 2hp more than a stock box with it still intact. Both boxes had the K&N filter in them.
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04-03-2014, 05:26 AM	#32
kobeballer96 Major 175 Rep 1,491 Posts Drives: 6SPD E82 Join Date: May 2013 Location: North Carolina iTrader: (4)	The K&N is a replacement filter big fucking whoop. I can't believe this is a thread. -----OUT __________________ Black Wrapped Roof, BFG Rivals, Dinan Camber plates, M3 Steering wheel, Matte Black kidney Grills, H&R Sport springs, Sparco assetto gara,Pagid sport Brakepads,STOPTECH Slotted Rotors, DISA STG3,EURO BOX
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04-04-2014, 03:05 PM	#43
mike-y just another bmw douche bag 195 Rep 3,640 Posts Drives: 1.9L of fury Join Date: Nov 2008 Location: Los Angeles, CA iTrader: (4)	the only thing you need to worry about is if your K&N is the typical oiled filter type. When you clean it, and re-oil it - don't spray too much oil on it or it will get on your MAF sensor and cause your car to not run as well. but it's always a good idea to spray/clean the sensor with MAF cleaner a couple of times a year anyway.
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04-04-2014, 08:36 PM	#44
Casca Captain 41 Rep 642 Posts Drives: E90 6MT Join Date: May 2010 Location: California iTrader: (0)	My charcoal screen is deleted and I have afe dry filter in place. Just had it smogged two weeks ago in California, no problems. Also running PE exhaust. They just go through the OBD2 now and check your O2 sensors for faults....I think. Took them less than 10 minutes and cost $69. Not sure I agree with the cost. Really all they did is connect a code reader and checked that I am not putting out O2 fault codes. Easy money for them I guess. Wonder if this can be made self-serve.
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