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Hope this is in the right forum. I've got a hanker'n to switch from the k&n filter I'm currently using to a paper filter for better filtration. I know there will be a small decrease in air flow but doubt it will noticeably effect the bikes performance. Besides k&n, what filters are ya'll using. Any and all suggestions are greatly appreciated.
 

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Ironbutt
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Hope this is in the right forum. I've got a hanker'n to switch from the k&n filter I'm currently using to a paper filter for better filtration. I know there will be a small decrease in air flow but doubt it will noticeably effect the bikes performance. Besides k&n, what filters are ya'll using. Any and all suggestions are greatly appreciated.
Just curious why you think you need better filtration? When kept oiled and maintained properly KnN filters are fine for street use. If you ride on dusty dirt/gravel roads a lot i can see maybe a change.
 

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Stupid quiestion here, but what kind of filter comes stock with teh SE Air cleaner set up?

Is there an advantage to running the K&N in that, or does the filer in the SE kit give extra flow?
 

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Just curious why you think you need better filtration? When kept oiled and maintained properly KnN filters are fine for street use. If you ride on dusty dirt/gravel roads a lot i can see maybe a change.
[email protected]: I use them in every car I've ever had, buy it once never have to replace them, manufacturer suggests cleaning every 50k, I do it every 30k, great performance no mater what you drive, and save a ton of money in the long run.
 

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Discussion Starter #6
Just curious why you think you need better filtration? When kept oiled and maintained properly KnN filters are fine for street use. If you ride on dusty dirt/gravel roads a lot i can see maybe a change.
K&N filters are good filters. Paper filters are better filters. The only thing a K&N offers is better air flow and a reusable filter good for the life of most vehicles. No matter how well you clean and oil a K&N it simply allows more particulate matter into the engine than a good paper element. I'm looking for a paper element with good flow and good filtration. Maybe I'm chasing something that doesn't really matter in the long run. K&N admits that their filters are roughly 99% as good as paper elements when it comes to filtration. Who knows how much or if any meaningful damage will come from that 1% diminished filtration over time. Too anal? Maybe.
 

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Ironbutt
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K&N filters are good filters. Paper filters are better filters. The only thing a K&N offers is better air flow and a reusable filter good for the life of most vehicles. No matter how well you clean and oil a K&N it simply allows more particulate matter into the engine than a good paper element. I'm looking for a paper element with good flow and good filtration. Maybe I'm chasing something that doesn't really matter in the long run. K&N admits that their filters are roughly 99% as good as paper elements when it comes to filtration. Who knows how much or if any meaningful damage will come from that 1% diminished filtration over time. Too anal? Maybe.
Too anal? You said it. There are millions of bikes out there running aftermarket (K&N) type filters without a problem. If you want a paper type filter you will need to go with a stock filter. You'll probably need to get your bike retuned too since the stock filter is much more restrictive.
 

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Ironbutt
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Stupid quiestion here, but what kind of filter comes stock with teh SE Air cleaner set up?

Is there an advantage to running the K&N in that, or does the filer in the SE kit give extra flow?
The SE AC use to come with a K&N filter but not anymore. I've read the new SE filter is high flow but not as good as the K&N - no first hand knowledge though.
 

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I run K&Ns in all my vehicles also. My last truck, a 318 Dodge, had 285,000 on it when I wrecked it and the engine was perfect, never had a problem. I also changed the oil every 5 to 7 thousand miles. Most people who regrugitate "conventional wisdom" have never taken off an oil pan and checked a set of main bearings with their own fingers, of personally set the end gap on a new set of rings. Parts is parts. Run em till they break, fix and repeat. You can buy plenty of parts for a whole lot less than the cost of a 400 to 500 dollar a month truck payment.
 

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I've always used K&N's as well, just haven't used em in the two HD's I've had. I did use them in other motorcycles I've owned.

Gotta say this is the first I've heard of any negatives about them.

Interersting. Still leaning towards putting one in, based on good experiences I've had with em.
 

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Discussion Starter #11
My 04 roadking came with the stage 1 upgrade when new. Of course, that included the K&N filter which I have used for the past 8 years. I recently took my Kawasaki sport bike in for servicing. That lead to tlaking about air filters and they're service people were adamantly against the use of the K&Ns. Said they let too much junk into the engines and that lead me to question having one in the roadking. If I can fing a paper filter with flow characteristics very close to the K&N I'll probably switch out. If it requires re-jetting the carb and going back on the dyno, probably not.
 

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How many remember when auto carb filters were all oil bath. Unless your running in a dust storm K&N is fine :beatdh:
 

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Seasoned and Baked
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K&N= highly overrated and over priced. A close riding bud who's a dyno freak said a cleaned K&N cost him an 8 hp loss over a new K&N. Moral here, don't clean 'em!
 

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Ironbutt
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K&N= highly overrated and over priced. A close riding bud who's a dyno freak said a cleaned K&N cost him an 8 hp loss over a new K&N. Moral here, don't clean 'em!
I would have to call BS on the hp loss. Did he run the tests on the same day back to back? Dynos are notorious for producing different results even running the same equipment. People often over-oil a filter after cleaning as well. This can affect air flow.
 

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I like HD parts but for and AC the K&N is a great product
weather you go with the high flow or stock ones for your ride.
If you clean them correctly and care for them they last a life time for many.
A quality product priced fair.
 

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H&N filter verse paper ones

Hope this is in the right forum. I've got a hanker'n to switch from the k&n filter I'm currently using to a paper filter for better filtration. I know there will be a small decrease in air flow but doubt it will noticeably effect the bikes performance. Besides k&n, what filters are ya'll using. Any and all suggestions are greatly appreciated.
I have both over the years. I have a K&N filter on my last few bikes. I like the it because I can keep the same one. You can reuse it. But the disavanged of it is if you drive on gravel or dusty conditions you have to clean it more it. No diffrent than a paper one.
 

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I have one on my FLHR ,no problems for years,even in the rain. I clean it once a year. I just bought a 2011 FXDF & will put one on it also. Just sayin.:beer::beer:
 
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