K&N filter good or bad?

Thread Tools
 
Search this Thread
 
Old Apr 12, 2012 | 03:08 PM
  #1  
wildwayne's Avatar
Thread Starter
Intermediate
 
Joined: Jan 2012
Posts: 27
Likes: 0
From: los angeles,CA
K&N filter good or bad?

Hi guys
i use to have a K&N filter on my previous Toyota
honestly... i don't feel any differences either performance or mileage
just want to see som feedback among follow RL owners
tks
Reply
Old Apr 12, 2012 | 03:25 PM
  #2  
justnspace's Avatar
Moderator
15 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Feb 2010
Posts: 86,293
Likes: 16,291
K&N filters actually filter WORSE than stock filters.
also, there isnt any performance gain to be had.
Reply
Old Apr 12, 2012 | 03:41 PM
  #3  
oo7spy's Avatar
Senior Moderator
 
Joined: Dec 2010
Posts: 31,897
Likes: 7,251
From: Austin, TX
^ Proof?

No performance to be gained. Savings to be gained, though.
Reply
Old Apr 12, 2012 | 03:45 PM
  #4  
justnspace's Avatar
Moderator
15 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Feb 2010
Posts: 86,293
Likes: 16,291
it lets more air in.
which means smaller particles can get in.

the limiting factor isnt the air filter, its the throttle body.
so having a filter that moves more air isnt going to get passed the small throttle body.

to make power, you need cooler air.
cooler air is denser air!
Reply
Old Apr 12, 2012 | 05:07 PM
  #5  
HEAVY_RL's Avatar
Suzuka Master
iTrader: (1)
 
Joined: Nov 2008
Posts: 7,123
Likes: 1,045
From: RVa
Never heard of them... https://acurazine.com/forums/2g-rl-2005-2012-76/k-n-engine-filter-question-852315/

Plus more air in does nothing if you cant add more fuel and let more air out.
Reply
Old Apr 12, 2012 | 08:23 PM
  #6  
EL19's Avatar
Suzuka Master
15 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Nov 2006
Posts: 5,340
Likes: 194
From: DC
I have one for sale if anyone interest $20 bucks. I changed to a custom CAI
Reply
Old Apr 12, 2012 | 10:19 PM
  #7  
oo7spy's Avatar
Senior Moderator
 
Joined: Dec 2010
Posts: 31,897
Likes: 7,251
From: Austin, TX
Originally Posted by justnspace
it lets more air in.
which means smaller particles can get in.
Again. For every demonstration that has been done to show the amount of particles let through by aftermarket filters, there is one showing the same results for stock ones. I have heard it and seen it disproved.


Heavy, while I agree with the letting air out, I am going to call on the RL not giving more fuel. How did that comptech s/c add 50 hp to an unmodified ECU?
Reply
Old Apr 12, 2012 | 11:13 PM
  #8  
LaCostaRacer's Avatar
Drifting
 
Joined: May 2006
Posts: 2,499
Likes: 222
From: Carlsbad, CA
I have had K&N's in past cars and there is no tangible performance improvement. I got suckered because I liked them on my motocross bikes in the past. What works well on a dirt bike may not on a smogged and highly engineered Acura.

Search youtube and you can't find any K&N .vs. stock results that come anywhere close to what is claimed. It's essentially the same performance and yet you can foul up a MAF sensor and cleaning the filter takes time because you need to completely dry the filter before reoiling- your car is offline for hours. So no performance gain, inferior filtering over stock, and 3x initial cost (when you factor recharge kit).
Reply
Old Apr 13, 2012 | 07:53 AM
  #9  
steve807's Avatar
Instructor
 
Joined: Mar 2002
Posts: 126
Likes: 7
From: San Antonio, TX
other that those minor things the K&N is great !
Reply
Old Apr 13, 2012 | 09:00 AM
  #10  
23109VC's Avatar
Drifting
 
Joined: Jul 2007
Posts: 2,112
Likes: 104
Do u guys think a true CAI would be a worthwhile mod?

I ran a K&N on a prior car and I really don't think I noticed any gains at all.... I am referring to the drop in filters that go into the OEM airbox.

I did put an aem intake onto my old Honda prelude years ago and that seems to add a marginal amount of top end power ...
Reply
Old Apr 13, 2012 | 09:04 AM
  #11  
EL19's Avatar
Suzuka Master
15 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Nov 2006
Posts: 5,340
Likes: 194
From: DC
I can feel the power with my CAI. I only gained mpg with my drop in K&N. Coincidentally I have a K&N filter on my CAI
Reply
Old Apr 13, 2012 | 09:26 AM
  #12  
HEAVY_RL's Avatar
Suzuka Master
iTrader: (1)
 
Joined: Nov 2008
Posts: 7,123
Likes: 1,045
From: RVa
Originally Posted by oo7spy
Again. For every demonstration that has been done to show the amount of particles let through by aftermarket filters, there is one showing the same results for stock ones. I have heard it and seen it disproved.


Heavy, while I agree with the letting air out, I am going to call on the RL not giving more fuel. How did that comptech s/c add 50 hp to an unmodified ECU?
Sure the ECU can accommodate up to a certain point, that's why they stopped making carburetors.
Reply
Old Apr 13, 2012 | 01:21 PM
  #13  
oo7spy's Avatar
Senior Moderator
 
Joined: Dec 2010
Posts: 31,897
Likes: 7,251
From: Austin, TX
I believe the RL was engineered well enough that a simple mod such as dropping a CAI isn't going to make a difference. The stock setup is already designed to bring in "cold" air. The inlet is right at the front of the hood between the battery and headlight.

The only proven performance gains here from a CAI were done in conjunction with the 5zigen exhaust and showed 12hp at the wheels. I would put money on the exhaust giving 10+ of that.
Reply
Old Apr 13, 2012 | 09:09 PM
  #14  
HEAVY_RL's Avatar
Suzuka Master
iTrader: (1)
 
Joined: Nov 2008
Posts: 7,123
Likes: 1,045
From: RVa
SCAI for the win.

Reply
Old Apr 13, 2012 | 10:41 PM
  #15  
Carbon Legend's Avatar
Burning Brakes
 
Joined: Mar 2011
Posts: 808
Likes: 244
Don't Forget about the Front Mount Interfooler.. I only use K&N filters. I've seen bad things happen with other filters especially the foam core like the HKS,weapon R act

Reply
Old Apr 17, 2012 | 09:21 PM
  #16  
02SilverSiHB's Avatar
Instructor
 
Joined: Mar 2012
Posts: 189
Likes: 17
From: Ft. Meade, Maryland
Originally Posted by HEAVY_RL
SCAI for the win.

Originally Posted by Carbon Legend
Don't Forget about the Front Mount Interfooler.. I only use K&N filters. I've seen bad things happen with other filters especially the foam core like the HKS,weapon R act

lol...funny
Reply
Old Apr 17, 2012 | 09:55 PM
  #17  
neuronbob's Avatar
Senior Moderator
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2001
Posts: 20,067
Likes: 4,698
From: Cleveland area, OH
Originally Posted by oo7spy
I believe the RL was engineered well enough that a simple mod such as dropping a CAI isn't going to make a difference. The stock setup is already designed to bring in "cold" air. The inlet is right at the front of the hood between the battery and headlight.

The only proven performance gains here from a CAI were done in conjunction with the 5zigen exhaust and showed 12hp at the wheels. I would put money on the exhaust giving 10+ of that.
Awww, thanks for referring to my RL. Still miss it.

Originally Posted by HEAVY_RL
SCAI for the win.



Originally Posted by Carbon Legend
Don't Forget about the Front Mount Interfooler.. I only use K&N filters. I've seen bad things happen with other filters especially the foam core like the HKS,weapon R act

Reply
Old Apr 18, 2012 | 10:25 AM
  #18  
Ballinger's Avatar
Burning Brakes
 
Joined: Aug 2008
Posts: 939
Likes: 25
From: SoCal
A K&N does flow more air than a paper filter, after both have some dirt/dust on them. New, not much difference, if any.

We've been using a K&N on our vehicles that go offroad for years. The difference in gas mileage and throttle response is tangible.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
nanos
Car Parts for Sale
26
Nov 12, 2015 08:41 PM
ibGTV
1G CL (1997-1999)
14
Sep 28, 2015 03:40 AM
Skirmich
2G TL (1999-2003)
37
Sep 15, 2015 06:41 PM
DDTsx06
1G RDX Performance Parts & Modifications
8
Sep 8, 2015 06:56 PM
NSolace
2G TL Problems & Fixes
15
Sep 3, 2015 08:02 PM




All times are GMT -5. The time now is 06:59 AM.