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  • 1 Post By dstevens
  • 2 Post By PeteN95
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Dec 3rd 2018, 09:24 AM   #1
 Sentinel's Avatar
 
  Jun 2016
  Poor Tortured

  2015 Kawasaki Concours 14 - The Origame Sea-Dragon
air filters -

so, yes, but only a little bit.

probably not worth the KN money but maybe worth "car-quest" money.

interesting side point - the "clean OEM filter" did not perform better than the "dirty oem filter". So, maybe if you don't want to mess with it at all, as long as your bike runs good enough for you, don't mess with it.

I've already bought the KN, so I am going to install it in the C14. But if I had not, I'd probably just pull the old one out and vacuum it maybe at 20,000 miles.


Edited by Sentinel on Dec 3rd 2018 at 09:26 AM
Dec 3rd 2018, 03:31 PM   #2
 
  May 2016
  Milwaukie, OR

  2016 ZX-10R; 2009 F800GS
Those "engineering explained," videos are good. Thanks for posting.

I've run K&Ns on my vehicles for years - mainly as I'd always thought they helped a little bit, and appreciated that I could wash and re-use them. In a previous instance (on my older ZX-6R), the actual filter area of the K&N was probably 10% more than OEM due to the plastic frame supporting the filter material being much smaller. Wondered if that was the source of the help. There was very little difference (if any) in filter area when I replaced the OEM on the ZX-10R this year.

However, I put a BMC in my car and burned up a mass air flow sensor last year (replaced under warranty, kindly). The filter was too saturated with their oil from the factory. I'm pretty careful about wiping them thoroughly now, and being pretty sparing with the oil application when I service the filters.
Dec 3rd 2018, 04:45 PM   #3
 
  Feb 2016
  Spokane

  Vstrom 1000, DRZ 400 XR600 and way to many vintage mxers to list
I have generally run K&N in most of my vehicles, including my dirtbikes and atv's. I think they have a good product and like Syringe indicated they are easy to clean.

But I also use them to honor their motorcycle heritage. K&N was a motorcycle company first and began building air cleaners for motorcycles before they started in the automobile business.

They started in Riverside CA and owned a motorcycle dealership before they become a filter business. Once they started their filter business, they sold their bike shop to Malcolm Smith and it became Malcolm Smith Motorsports.
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Dec 4th 2018, 10:18 AM   #4
 PeteN95's Avatar
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  Jan 2016
  Muklilteo, WA

  Suzuki DL1000, Honda XR650R, KTM 250 XC-W
I had an XR100 die because a K&N passed so much dirt. I will not run them on any off road vehicle again. I was also told by a trophy truck racer that they will not run them, only paper filters. FYI
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Dec 4th 2018, 05:38 PM   #5
 Sentinel's Avatar
 
  Jun 2016
  Poor Tortured

  2015 Kawasaki Concours 14 - The Origame Sea-Dragon
it appears to me that the benefit of an aftermarket filter is achieved by having more surface area in the same frame size, which is accomplished by having more folds. This is how you get more air without a larger pass-through diameter of the filter element itself. Notice that KN does NOT take that approach. Rather, they just have bigger "holes", which does pass more air, and everything else. This why they want you to oil the filter, to make shit stick to it. So, bigger holes, but goopy. Of course, some of that oil goes into your intake system and coats everything. Eventually that coat gets pretty sticky. Think about a cast iron pan that you left oil in for a long time, and how sticky it gets.
Dec 5th 2018, 05:28 AM   #6
 Suzuki Stevo's Avatar
 
  Jan 2016
  Seattle ,Wa

  Burgman 400, TW200, Boulevard M50, 2018 Indian Scout 1131, 2018 Indian Chieftain Classic
I have used K&N filters for years, but only for street applications. My favorite off road filter is paper with an oiled foam pre filter.

This is a filter for my Honda Big Ruckus 250, I sold the Ruckus for my Burgman 400 before I installed it, this filter is still in my basement somewhere...see the light?

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