K&N Filter-yes or no?

MB>BMW · 10-18-2009, 10:27 PM

I remember reading a few threads back saying these things are bad for our MAF's.

My friend put one in his A4 and his 328i and it came alive. Definitely improved sound, acceleration, overall breathing of the car.

For those with the knowledge and experience, should I get one or no?

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tonysemi · 10-18-2009, 11:35 PM

I would also like to know, I have a c43 that had k&n filters when i bought it.. should i take them out? thanks. And is the reasoning the "wet" style filter is bad for the electronics?

ohlord · 10-19-2009, 01:58 PM

noise does not equate into performance.
His time slips did not improve,his butt dyno did

Besides the maf issue which k/n will highly debate the k/n filters have shown to pass 8 times the size particles that cause engine wear after just 30 minutes of installation.
snake oil that can do harm is even worse than snake oil that does nothing.

keep a fresh air filter oem style for 13 bucks or whatever from www.autohausaz.com every other oil change and you will have all the air you need.
http://www.youtube.com/watch?v=yoLkd2HSJw8

stock filter and not butt dyno

Mister Brenton · 10-19-2009, 02:19 PM

I ran K&N for years with no problem, as many other members here do who understand not to over oil them.
However, after reading a real study showing exactly how much more particles are let through versus stock paper, I switched back to OEM. I did sense a bit more pep using K&N, but engine longevity is more important to me than the extra 50 horsepower.

That said, I still have 2 filters anyone can have for cost of shipping and a six pack.

And yes, i'm kidding about the horsepower.

tonysemi · 10-19-2009, 02:31 PM

Guess im gonna pull mine out, not worth the risk to me. THANKS!

jturkel · 10-19-2009, 04:01 PM

i'd keep them. i've been running the same set of K&Ns in my C32 for 6 years and they work great. Engine running great and not suffering any ridiculous debris noticeable in oil changes, etc.

the MAF sensor issue comes from people who don't give the air filters sufficient time to "dry" after the cleaning and re-oiling process.

you will pick up maybe a hp or 2, notice increased throttle response, and a little louder intake noise.

C43AMG · 10-19-2009, 06:23 PM

I am running them in all 3 of my cars,no problems at all.I 've run them in every vehicle I've ever owned and I will continue to put them in all my future cars.

ohlord · 10-19-2009, 08:50 PM

"A foolish consistency is the hobgoblin of little minds"

still rings true in the face of evidence to the contrary.
No wondering why low mile C43's go for dirt cheap on the EC

C43AMG · 10-19-2009, 08:53 PM

Quote:

Originally Posted by ohlord

"A foolish consistency is the hobgoblin of little minds"

still rings true in the face of evidence to the contrary.
No wondering why low mile C43's go for dirt cheap on the EC

No evidence here , been driving 28 years without a problem.

Mister Brenton · 10-20-2009, 02:53 PM

http://duramax-diesel.com/spicer/index.htm

ejsheltra · 10-20-2009, 03:05 PM

I will send my K n' N to any individual wanting it for shipping only. Your current OEM filter will flow more air than your motor can draw. I have been on a Dynojet with a 70' Boss 302 at 463 hp at 6800rpm with no change in hp or torque figures between standard filter and the K and N except that the venturis of the Holley carb had residue after the K and N was used, properly dried of course.

jimpeterson · 11-02-2009, 10:43 AM

I have a 1997 Dodge diesel that had a k&n air filter. Over the years, the "fuzz" on the filter started coming apart, and ate my turbo, and who knows how much more damage. k&n never even answered my email.

BADwayz · 11-02-2009, 05:41 PM

I use stock air boxes and stock paper filters on all my euro's, best money I've ever saved.

tonysemi · 11-02-2009, 10:39 PM

What about AEM style dry filters?

10-19-2009, 01:58 PM	#3
ohlord MBWorld Fanatic! Join Date: Apr 2007 Posts: 4,438 Drives: E55 powered E320 Wagon,1971MGB Track/Rally, MG Midget Autocross,94subaru, 2000 E320 wagon.	No noise does not equate into performance. His time slips did not improve,his butt dyno did Besides the maf issue which k/n will highly debate the k/n filters have shown to pass 8 times the size particles that cause engine wear after just 30 minutes of installation. snake oil that can do harm is even worse than snake oil that does nothing. keep a fresh air filter oem style for 13 bucks or whatever from www.autohausaz.com every other oil change and you will have all the air you need. http://www.youtube.com/watch?v=yoLkd2HSJw8 stock filter and not butt dyno __________________ "whatever you say, you speak into existence" ohlord Cognomen is in homage to the late great Janis Joplin "Oh lord won't you buy me a Mercedes Benz" W210 Wagons,a few MG's,assorted others and a partridge in a pear tree. pm me if you need me

10-19-2009, 02:19 PM	#4
Mister Brenton Super Moderator Join Date: Feb 2002 Location: G.R.I.P. in NOVEMBER! Posts: 7,822 Drives: 2011 E65 Black	I ran K&N for years with no problem, as many other members here do who understand not to over oil them. However, after reading a real study showing exactly how much more particles are let through versus stock paper, I switched back to OEM. I did sense a bit more pep using K&N, but engine longevity is more important to me than the extra 50 horsepower. That said, I still have 2 filters anyone can have for cost of shipping and a six pack. And yes, i'm kidding about the horsepower. __________________ MBWORLD Special - OEM Parts Wholesale. Inquire within. Price sheet now at www.keepandshare.com/doc/view.php?id=631973&da=y That's from March 2008, so is somewhat out of date.

10-19-2009, 04:01 PM	#6
jturkel MBWorld Fanatic! Join Date: Oct 2006 Location: Scottsdale, AZ Posts: 3,754 Drives: 02 C32 AMG	i'd keep them. i've been running the same set of K&Ns in my C32 for 6 years and they work great. Engine running great and not suffering any ridiculous debris noticeable in oil changes, etc. the MAF sensor issue comes from people who don't give the air filters sufficient time to "dry" after the cleaning and re-oiling process. you will pick up maybe a hp or 2, notice increased throttle response, and a little louder intake noise. __________________ \| 02 C32 AMG \| SL55 Intake w/K&Ns \| LET 185 Pulley \| LET Tune \| LET Heat Exchanger \| Eurocharged Headers \| Res Delete \| NGK IX Iridiums \| Magnecor KV85s \| NW Pulley Saver \| NW ISO Kit \| Valentine1 \| DashDyno SPD \| CF Trunk Lip \| Waiting Install: NW oil catch can Next: secondary cat delete, retune, coolant reservoir, intake/tb project, hooley button

10-19-2009, 06:23 PM	#7
C43AMG MBWorld Fanatic! Join Date: Feb 2005 Location: The Soprano State - NJ Posts: 5,090 Drives: 98 Black C43 , 00' C230K , 91 420SEL	I am running them in all 3 of my cars,no problems at all.I 've run them in every vehicle I've ever owned and I will continue to put them in all my future cars. __________________ No engine , no badge

10-19-2009, 08:50 PM	#8
ohlord MBWorld Fanatic! Join Date: Apr 2007 Posts: 4,438 Drives: E55 powered E320 Wagon,1971MGB Track/Rally, MG Midget Autocross,94subaru, 2000 E320 wagon.	At least the old phrase "A foolish consistency is the hobgoblin of little minds" still rings true in the face of evidence to the contrary. No wondering why low mile C43's go for dirt cheap on the EC __________________ "whatever you say, you speak into existence" ohlord Cognomen is in homage to the late great Janis Joplin "Oh lord won't you buy me a Mercedes Benz" W210 Wagons,a few MG's,assorted others and a partridge in a pear tree. pm me if you need me

10-18-2009, 11:35 PM	#2
tonysemi Member Join Date: Oct 2009 Location: Newport News Posts: 91 Drives: 1998 C43 AMG, 95 Acura GSR , 97 Civic Hatch	I would also like to know, I have a c43 that had k&n filters when i bought it.. should i take them out? thanks. And is the reasoning the "wet" style filter is bad for the electronics?

10-19-2009, 02:31 PM	#5
tonysemi Member Join Date: Oct 2009 Location: Newport News Posts: 91 Drives: 1998 C43 AMG, 95 Acura GSR , 97 Civic Hatch	Guess im gonna pull mine out, not worth the risk to me. THANKS!

10-20-2009, 02:53 PM	#10
Mister Brenton Super Moderator Join Date: Feb 2002 Location: G.R.I.P. in NOVEMBER! Posts: 7,822 Drives: 2011 E65 Black	http://duramax-diesel.com/spicer/index.htm __________________ MBWORLD Special - OEM Parts Wholesale. Inquire within. Price sheet now at www.keepandshare.com/doc/view.php?id=631973&da=y That's from March 2008, so is somewhat out of date.

10-20-2009, 03:05 PM	#11
ejsheltra Super Member Join Date: May 2008 Location: Pittsburgh,PA, Cambridge, Ontario, CN Posts: 537 Drives: 2003 S210 3.8L Brabus wagon	I will send my K n' N to any individual wanting it for shipping only. Your current OEM filter will flow more air than your motor can draw. I have been on a Dynojet with a 70' Boss 302 at 463 hp at 6800rpm with no change in hp or torque figures between standard filter and the K and N except that the venturis of the Holley carb had residue after the K and N was used, properly dried of course.

11-02-2009, 10:43 AM	#12
jimpeterson Newbie Join Date: Oct 2009 Posts: 2 Drives: 2001 E430	I have a 1997 Dodge diesel that had a k&n air filter. Over the years, the "fuzz" on the filter started coming apart, and ate my turbo, and who knows how much more damage. k&n never even answered my email.

11-02-2009, 05:41 PM	#13
BADwayz Member Join Date: Oct 2007 Posts: 106 Drives: German	I use stock air boxes and stock paper filters on all my euro's, best money I've ever saved. __________________ 1997 W210 RAT 1982 W126 AMG

11-02-2009, 10:39 PM	#14
tonysemi Member Join Date: Oct 2009 Location: Newport News Posts: 91 Drives: 1998 C43 AMG, 95 Acura GSR , 97 Civic Hatch	What about AEM style dry filters?

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