K&N vs. stock filter - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 11 Old 04-08-2006, 11:44 PM Thread Starter
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K&N vs. stock filter

Hey wrench benders,

I don't like paying $30 USD for an air filter. I'd pay more for a K&N because of course they are quite durable and can be cleaned many times. I do not however want to change the airflow/gas mileage characteristics of the stock setup.

Ideally I'd the like "performance" of the stock filter with the long service life of the K&N. I have used K&N filters in other machines before and in every case they used more fuel than with a stock filter. I don't want to do that to my Strom, even if it means buying obscenely overpriced OE style filters on a regular basis.

What do you think?

'06 DL-1000
'06 KLX 250S (more fun than people should be allowed to have)
'72 SL-350 K2 (bump start only)
'72 CL-350 (on injured reserve list at this time)

I guess it's better to bend a valve in Missoula than to lose your mind in Bozeman.

-Barb Egan
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post #2 of 11 Old 04-09-2006, 12:21 AM
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MWValley,

Keep spending the 30 bucks on the OE filter. How often are you changing your filter out? Are you doing a lot of dirt road riding that requires you to change out the filter much quicker than the recommended intervals? Personally, I think spending the $$ on the OE filter is the best option. Some things are worth the extra bucks.

~Mike
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post #3 of 11 Old 04-09-2006, 12:38 AM
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The K/N filter works well enough I suppose but to use it and then clean it properly one must have the work area and such. Apartment dwellers such as myself with no facilities are probably better off with the stock filter. Less mess and frustration in the long run.

05 / 650 in blue
88 / KDX 200 in green
81/82 DT 175 Yamahussies
79/SP 370 Suzuki-bad bike-no keep
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post #4 of 11 Old 04-09-2006, 09:49 AM
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Not to defend the K&N but "a work area" to service an air filter? WW, there really is nothing to it, all you need is some running water. Spray on the cleaner, allow to soak for a minute and then rinse. Once its dry, spray on the filter oil and re-install it in the bike. Really, a pretty simple operation.

MWValley, I'm curious of your increased fuel use. I've run BMC and K&N, reusable filters in various vehicles and never experienced increased fuel use.
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post #5 of 11 Old 04-09-2006, 09:50 AM
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Not to defend the K&N but "a work area" to service an air filter? WW, there really is nothing to it, all you need is some running water. Spray on the cleaner, allow to soak for a minute and then rinse. Once its dry, spray on the filter oil and re-install it in the bike. Really, a pretty simple operation.

MWValley, I'm curious of your increased fuel use. I've run BMC and K&N, reusable filters in various vehicles and never experienced increased fuel use. The discussion about these filters is usually about their filtration qualities and the amount of material they allow to pass through to the engine.
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post #6 of 11 Old 04-09-2006, 10:29 AM
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Heavy, my only work area would be the kitchen sink and I wouldn't want to be flushing cleaners and old oil from the filter down into the drain. Even if I contained it all and disposed of it properly I still have a job that I don't want to do. Call me lazy if you want, I don't mind. The factory filters are easier to handle and the number of times it is changed won't be a financial hardship. If factory filters are a financial hardship then I can't afford to keep the bike and it will go to a new home. That's my story and I'm stickun to it. ... Ride On...

05 / 650 in blue
88 / KDX 200 in green
81/82 DT 175 Yamahussies
79/SP 370 Suzuki-bad bike-no keep
78/ GT 750 water pumper
75/Suzuki 125 RV
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post #7 of 11 Old 04-09-2006, 06:25 PM
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WW, I understand what you're saying. I guess I was just trying to get across that cleaning the filter is no real big deal.

On another topic, I managed to get out and put some miles on my new Strom. Man, the more I ride it the more I love it. I've got just over 600 kms now. Not much but not bad for 2, actual, riding days. Once the temps start staying above freezing it'll be that much better.
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post #8 of 11 Old 04-10-2006, 10:47 AM Thread Starter
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In regard to the K&N filter thing, I've installed them in among other vehicles a 1988 ZG1000 (Concours). Without changing anything else, the gas mileage went from a long-established 45 to about 40 or a little less. It could be my imagination but I think the engine did pull harder especially in midrange rev numbers. But the stock motor setup was plenty strong. I rode that bike for 7 years so having a "clean and reuse" filter was well worth the money but I don't know how much it cost me in fuel. In the 5 years that filter was in the airbox, I think the difference cost me as much as a pile of OEM filters.

'06 DL-1000
'06 KLX 250S (more fun than people should be allowed to have)
'72 SL-350 K2 (bump start only)
'72 CL-350 (on injured reserve list at this time)

I guess it's better to bend a valve in Missoula than to lose your mind in Bozeman.

-Barb Egan
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post #9 of 11 Old 04-10-2006, 10:51 AM
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I used several K&N filters from the late 70s to early 90s, but, frankly, didn't notice a difference in performance, just increased induction noise.

2005 DL650
(Alaska Leather buttpad, Givi shield, Kaoko throttle lock, Madstad mount, Nelson-Rigg RTB500 tailbag & SB900 saddlebags & SP-903 tank bag, NOJ grip wraps, handguards, ThrottleRocker)

2001 SV650S
1994 RF600R
1978 Honda XL175

Former:
1982 GS650E
1978 GS1000E
1978 Honda Hawk
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post #10 of 11 Old 04-14-2006, 11:39 AM
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I didn't notice any drop in mpg when I switched to K&N on my otherwise onmodified Strom. However, when I remapped via a Yosh box, I went from 48-49 mpg to 39-40 mpg (cold weather) and 43-45 mpg (warmer weather). I enjoy the K&N b/c of it's long life, easy cleaning. Just wish it was easier to get to :?
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