K & N Dirt Bike Parts: Engine

K & N Dirt Bike Parts: Filters

K & N Dirt Bike Parts: Fuel and Air Intake Systems

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  • K & N Oil Filter

    K & N Oil Filter

    mike in CT

    excellent filters

    cant beat a K&N filter use them on all my off road machines.

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  • K & N MX XStream Air Filter

    K & N MX XStream Air Filter

    Bary in Utah

    I think I'll go back to the foam style.

    I mostly purchased the K&N filter because removing and installing the rigid filter cage of the 450x is difficult and it can be hard to know if you got it seated properly. The K&N is flexible and has the removable center so it is a little easier to install and you can feel inside with your fingers to verify that it is positioned and seated properly. That part I like. However, holding it up the light reveals many little pin holes of light passing through the filter and it seemed to me that if there is a light path then chances are that dust can also pass. I searched online and found about 50:50 arguing for and against this possibility so I did my own test and found that after a couple of hours riding behind in dusty conditions there was in fact some fine dust deposited on the air box walls behind the filter. I didn't notice any power gain with this filter.

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  • K & N Clamp On Air Filter

    K & N Clamp On Air Filter

    EDGARD R in AZ

    filter

    Excellent quality at a good price

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  • K & N Air Filter

    K & N Air Filter

    katherine in OH

    let it breath

    does what it says. lets the motor have better intake

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  • K & N Power Kleen Air Filter Cleaner

    K & N Power Kleen Air Filter Cleaner

    marc in NJ

    drz400sm crf250l

    only used it once so far... seemed to work well and do the job efficiently... i am not a fan of K&N air filters, but i will give this one a go for a few more miles and see about maybe going to a uni or twin air...

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  • K & N Air Filter Oil

    K & N Air Filter Oil

    marc in NJ

    drz400sm crf250l

    no problems... i see what they have caught, and it makes me feel comfortable using them... cheaper then OEM. i switch back and fourth between OEM and these...

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