K & N Airfilter

mpizutti · 02-12-2016, 10:51 AM

Has anyone tried the K&N air filter??

2msport · 02-12-2016, 10:58 AM

I used to use them in previous vehicles and always felt like it helped. I used one in my 2 for about 1000 miles but was worn down by people on this forum with the notion the oil can potentially get in the system. And perhaps more importantly let too many particles through due to the less restrictive screen. The gains will maybe get you 1hp if that, so I decided it wasn't worth the risk. Also I felt like I didn't like the throttle response as much with it. (Wasn't as smooth) maybe it was in my head..

robman23 · 02-12-2016, 04:27 PM

I didn't think K&N was available for the M235. I used them on two other vehicles. Very good product. On my truck, the oil did set off an O2 sensor. Anyone have a preference on air intakes?

BMWZ4 · 02-12-2016, 06:48 PM

I have the Dinan CAI and it's an oiled version. No issues with the O2 sensor at all.

Jasond13 · 02-13-2016, 02:34 PM

I replaced my BMS with a K&N and never looked back. Lost some cool sounds but the reliability is key. Works just fine no issues.

mike@x-ph.com · 02-15-2016, 01:25 PM

Quote:

Originally Posted by mpizutti

Has anyone tried the K&N air filter??

Very popular option and a vast majority of the feedback are positive

shane060 · 02-19-2016, 02:40 PM

Loved my KN but recenlty got MAF code due to the oil. Took it out cleared the code and no issues since... Might clean some of the excess oil off and then retry because It did give some cool sounds over the stock one.

pikcachu · 02-19-2016, 02:45 PM

AFE pro Dry S is a pretty good alternative... better flow than stock and no oil

http://afepower.com/shop/details_new...artno=31-10226

Nose Nuggets · 02-19-2016, 07:53 PM

Quote:

Originally Posted by pikcachu

AFE pro Dry S is a pretty good alternative... better flow than stock and no oil

http://afepower.com/shop/details_new...artno=31-10226

does this completely remove the possibility of throwing a code because it doesn't have oil? or does the change in airflow still present a problem?

pikcachu · 02-19-2016, 08:27 PM

Quote:

Originally Posted by Nose Nuggets

does this completely remove the possibility of throwing a code because it doesn't have oil? or does the change in airflow still present a problem?

It will not throw a code cause it uses the stock airbox. It's just a better filter than you can just wash instead of throw away

FSociety · 02-20-2016, 08:30 PM

I use BMC filter, so far 7k miles no issues.

Jeff@TopGearSolutions · 02-21-2016, 01:11 PM

Best go to with a dry filter with a MAF car like the AFE pro dry s panel filter.

FSociety · 02-21-2016, 03:21 PM

Quote:

Originally Posted by Jeff@TopGearSolutions

Best go to with a dry filter with a MAF car like the AFE pro dry s panel filter.

I agree I might go with this hear good things about Dry one.

hoppy6698 · 02-24-2016, 09:52 PM

Quote:

Originally Posted by pikcachu

It will not throw a code cause it uses the stock airbox. It's just a better filter than you can just wash instead of throw away

I use the same, no issues over the past 8k miles. Does bump up the intake sound in sport (slightly), but only under hard pulls. Otherwise, just as quiet, more flow, all good.

02-12-2016, 10:51 AM	#1
mpizutti 2018 M3CS Pittsburgh 606 Rep 758 Posts Drives: 2016 528 , 2018 M3CS 2020 M8 Join Date: Jul 2015 Location: PA iTrader: (0) Garage List 2017 M3 [0.00] 2016 bmw m2351 [0.00]	K & N Airfilter Has anyone tried the K&N air filter??
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02-12-2016, 10:58 AM	#2
2msport Captain 207 Rep 757 Posts Drives: '14 228 MT Join Date: Apr 2014 Location: NY iTrader: (1)	I used to use them in previous vehicles and always felt like it helped. I used one in my 2 for about 1000 miles but was worn down by people on this forum with the notion the oil can potentially get in the system. And perhaps more importantly let too many particles through due to the less restrictive screen. The gains will maybe get you 1hp if that, so I decided it wasn't worth the risk. Also I felt like I didn't like the throttle response as much with it. (Wasn't as smooth) maybe it was in my head..
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02-12-2016, 04:27 PM	#3
robman23 Private 34 Rep 73 Posts Drives: M235 Join Date: Jan 2016 Location: NorCal iTrader: (0)	I didn't think K&N was available for the M235. I used them on two other vehicles. Very good product. On my truck, the oil did set off an O2 sensor. Anyone have a preference on air intakes?
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02-12-2016, 06:48 PM	#4
BMWZ4 Major General 1924 Rep 5,115 Posts Drives: '23 X1/'23 Allroad Progressiv Join Date: Apr 2010 Location: Toronto iTrader: (1)	I have the Dinan CAI and it's an oiled version. No issues with the O2 sensor at all. __________________ '11 Z4 30i (retired);'11 X3 28i (retired); '15 M235i Stage 1 Dinan (recalled & crushed); '16 M235i Stage 3 Dinan (retired); '15 X3 28i (retired); '14 328i (retired), 2019 X3M40i (retired); Loaded '18 X1 (retired); Loaded '20 X3MC DG, Black/Tan Merino (retired); Loaded '23 X1 Cape York green and Red/Black interior; '23 Audi A4 Allroad Progressiv
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02-13-2016, 02:34 PM	#5
Jasond13 Banned 41 Rep 137 Posts Drives: Man Join Date: Sep 2014 Location: Philippines iTrader: (0)	I replaced my BMS with a K&N and never looked back. Lost some cool sounds but the reliability is key. Works just fine no issues.
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02-19-2016, 02:40 PM	#7
shane060 Second Lieutenant 90 Rep 229 Posts Drives: 2015 M235 6spd 2011 M3 DCT Join Date: Nov 2009 Location: SA TX iTrader: (1) Garage List 2011 M3 [0.00]	Loved my KN but recenlty got MAF code due to the oil. Took it out cleared the code and no issues since... Might clean some of the excess oil off and then retry because It did give some cool sounds over the stock one.
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02-19-2016, 02:45 PM	#8
pikcachu Major General 1412 Rep 5,262 Posts Drives: M235i (F22 Red angel) Join Date: Jul 2011 Location: undisclosed iTrader: (1)	AFE pro Dry S is a pretty good alternative... better flow than stock and no oil http://afepower.com/shop/details_new...artno=31-10226
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02-20-2016, 08:30 PM	#11
FSociety IG @bmwF9xG80 3859 Rep 7,614 Posts Drives: G80 M3, X4M, G07 X7m50 Join Date: Apr 2012 Location: NYC to NJ to Orlando FL iTrader: (3) Garage List 2023 BMW G80 M3 [10.00] 2020 BMW X4MC [10.00] 16' BMW X4 M40i [10.00] 06 Cadillac STS [10.00]	I use BMC filter, so far 7k miles no issues. __________________ 60-130 6.5s X4M 60-130 5.04s G80 M3 Stock Turbo 60-130 4.82s \| 9.4@148mph 1/4 Hybrids IG: @bmwF9XG80
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02-21-2016, 01:11 PM	#12
Jeff@TopGearSolutions 3455 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	Best go to with a dry filter with a MAF car like the AFE pro dry s panel filter.
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