K&N Air Filters

MBrown

Diamond Member
Jul 5, 2001
5,726
35
91
Does anyone notice a different between K&N Air filters and competitors?
 

bwatson283

Golden Member
Jul 16, 2006
1,062
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Originally posted by: mercanucaribe
K&N lets more dirt through

Bull!

I use it on all of my rides and it keeps lots of crap out. Cleaning time is fun. Make sure it is dry first after cleaning.......i know from EXP
 

scorpmatt

Diamond Member
Feb 8, 2001
7,040
97
91
yeah, noticed a slight increase in engine response.

some people I know that have run K&N's air filters have also noticed the oil from the air filter lining their intake pipes.
 

Ktulu

Diamond Member
Dec 16, 2000
4,354
0
0
Originally posted by: scorpmatt
yeah, noticed a slight increase in engine response.

some people I know that have run K&N's air filters have also noticed the oil from the air filter lining their intake pipes.

Could that be from people over doing the oil when reapplying? If they used the recommended amount they should be fine right?
 

bwatson283

Golden Member
Jul 16, 2006
1,062
0
0
Originally posted by: Ktulu
Originally posted by: scorpmatt
yeah, noticed a slight increase in engine response.

some people I know that have run K&N's air filters have also noticed the oil from the air filter lining their intake pipes.

Could that be from people over doing the oil when reapplying? If they used the recommended amount they should be fine right?

Bingo.....More oil the more dry time
 

holden j caufield

Diamond Member
Dec 30, 1999
6,324
10
81
some studies show they let more air thus thus dirt through. Guilty of putting too much oil when cleaning the filter
 

Zenmervolt

Elite member
Oct 22, 2000
24,514
44
91
Originally posted by: bwatson283
Originally posted by: mercanucaribe
K&N lets more dirt through
Bull!

I use it on all of my rides and it keeps lots of crap out. Cleaning time is fun. Make sure it is dry first after cleaning.......i know from EXP
It still catches some dirt, but it doesn't catch as much as a paper filter.

More flow = less filtration for a given filter area. Always and forever with no exceptions.

K&N does NOT filter as well as a paper filter. Also, it takes over 100,000 miles before it pays off.

Paper Filter: $20.
K&N: $60.
K&N Oil Kit: $20.
Paper filter life: 30,000 miles.
Time to break even on the K&N: 120,000 miles.

Plus there's the hour or two filter cleaning instead of the 5 minute replacement of a paper filter.

ZV
 

scorpmatt

Diamond Member
Feb 8, 2001
7,040
97
91
Originally posted by: bwatson283
Originally posted by: Ktulu
Originally posted by: scorpmatt
yeah, noticed a slight increase in engine response.

some people I know that have run K&N's air filters have also noticed the oil from the air filter lining their intake pipes.

Could that be from people over doing the oil when reapplying? If they used the recommended amount they should be fine right?

Bingo.....More oil the more dry time

this was following the K&N directions. Others let it dry longer. Same results.
 

scorpmatt

Diamond Member
Feb 8, 2001
7,040
97
91
Originally posted by: Zenmervolt
Originally posted by: bwatson283
Originally posted by: mercanucaribe
K&N lets more dirt through
Bull!

I use it on all of my rides and it keeps lots of crap out. Cleaning time is fun. Make sure it is dry first after cleaning.......i know from EXP
It still catches some dirt, but it doesn't catch as much as a paper filter.

More flow = less filtration for a given filter area. Always and forever with no exceptions.

K&N does NOT filter as well as a paper filter. Also, it takes over 100,000 miles before it pays off.

Paper Filter: $20.
K&N: $60.
K&N Oil Kit: $20.
Paper filter life: 30,000 miles.
Time to break even on the K&N: 120,000 miles.

Plus there's the hour or two filter cleaning instead of the 5 minute replacement of a paper filter.

ZV

takes me about 10 minutes to remove the airfilter from my car. :D
 

isekii

Lifer
Mar 16, 2001
28,578
3
81
Originally posted by: scorpmatt
Originally posted by: Zenmervolt
Originally posted by: bwatson283
Originally posted by: mercanucaribe
K&N lets more dirt through
Bull!

I use it on all of my rides and it keeps lots of crap out. Cleaning time is fun. Make sure it is dry first after cleaning.......i know from EXP
It still catches some dirt, but it doesn't catch as much as a paper filter.

More flow = less filtration for a given filter area. Always and forever with no exceptions.

K&N does NOT filter as well as a paper filter. Also, it takes over 100,000 miles before it pays off.

Paper Filter: $20.
K&N: $60.
K&N Oil Kit: $20.
Paper filter life: 30,000 miles.
Time to break even on the K&N: 120,000 miles.

Plus there's the hour or two filter cleaning instead of the 5 minute replacement of a paper filter.

ZV

takes me about 10 minutes to remove the airfilter from my car. :D

Mine takes me literally 1 min at the most
 

Gunslinger08

Lifer
Nov 18, 2001
13,234
2
81
Originally posted by: holden j caufield
some studies show they let more air thus thus dirt through. Guilty of putting too much oil when cleaning the filter

It doesn't necessarily mean that more dirt is getting into the intake and engine. If a paper filter is overly restrictive and all significant dirt could be filtered by a more porous material, there's no reason not to use a K&N filter and get more power.
 

AdamK47

Lifer
Oct 9, 1999
15,805
3,611
136
Originally posted by: isekii
Originally posted by: scorpmatt
Originally posted by: Zenmervolt
Originally posted by: bwatson283
Originally posted by: mercanucaribe
K&N lets more dirt through
Bull!

I use it on all of my rides and it keeps lots of crap out. Cleaning time is fun. Make sure it is dry first after cleaning.......i know from EXP
It still catches some dirt, but it doesn't catch as much as a paper filter.

More flow = less filtration for a given filter area. Always and forever with no exceptions.

K&N does NOT filter as well as a paper filter. Also, it takes over 100,000 miles before it pays off.

Paper Filter: $20.
K&N: $60.
K&N Oil Kit: $20.
Paper filter life: 30,000 miles.
Time to break even on the K&N: 120,000 miles.

Plus there's the hour or two filter cleaning instead of the 5 minute replacement of a paper filter.

ZV

takes me about 10 minutes to remove the airfilter from my car. :D

Mine takes me literally 1 min at the most

If I start with me sitting in the driver seat with the door and hood closed it will take me 10 seconds for the Sebring linked in my sig.
 

RU482

Lifer
Apr 9, 2000
12,689
3
81
Originally posted by: joshsquall
Originally posted by: holden j caufield
some studies show they let more air thus thus dirt through. Guilty of putting too much oil when cleaning the filter

It doesn't necessarily mean that more dirt is getting into the intake and engine. If a paper filter is overly restrictive and all significant dirt could be filtered by a more porous material, there's no reason not to use a K&N filter and get more power.

I can think of one...price
 

lokiju

Lifer
May 29, 2003
18,526
5
0
I got the cold air intake kit and notice better response but not enough that I'd buy one again.
 

mugs

Lifer
Apr 29, 2003
48,920
46
91
Originally posted by: isekii
Originally posted by: scorpmatt
Originally posted by: Zenmervolt
Originally posted by: bwatson283
Originally posted by: mercanucaribe
K&N lets more dirt through
Bull!

I use it on all of my rides and it keeps lots of crap out. Cleaning time is fun. Make sure it is dry first after cleaning.......i know from EXP
It still catches some dirt, but it doesn't catch as much as a paper filter.

More flow = less filtration for a given filter area. Always and forever with no exceptions.

K&N does NOT filter as well as a paper filter. Also, it takes over 100,000 miles before it pays off.

Paper Filter: $20.
K&N: $60.
K&N Oil Kit: $20.
Paper filter life: 30,000 miles.
Time to break even on the K&N: 120,000 miles.

Plus there's the hour or two filter cleaning instead of the 5 minute replacement of a paper filter.

ZV

takes me about 10 minutes to remove the airfilter from my car. :D

Mine takes me literally 1 min at the most

Literally literally or figuratively literally? :p
 

The Sauce

Diamond Member
Oct 31, 1999
4,741
34
91
Originally posted by: MBrown
Does anyone notice a different between K&N Air filters and competitors?

Yes, I put a K&N in a perfectly good Supra and the head gasket blew 9 months later. No more K&N for me.
 

zerocool84

Lifer
Nov 11, 2004
36,041
472
126
Originally posted by: Snatchface
Originally posted by: MBrown
Does anyone notice a different between K&N Air filters and competitors?

Yes, I put a K&N in a perfectly good Supra and the head gasket blew 9 months later. No more K&N for me.


I think you had more problems than that K&N filter
 

Safeway

Lifer
Jun 22, 2004
12,075
11
81
K&N filters just as well as a paper filter from my experience. That said, we only used K&N filters on our Impala SS and Corvette Grand Sport. In other words, in vehicles with high performance engines.
 

OJ

Senior member
Oct 9, 1999
858
0
0
Plenty of independant studies around on the net, they Do let more dirt pass thru the filter.

Does this hurt the motor long term, depends how long you keep the car or truck.