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K&N Air Filter KA-2508
  • K&N Air Filter KA-2508
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K&N Air Filter KA-2508

K&N Air Filters are designed to achieve a virtually unrestricted air flow while maintaining filtration levels critical to engine life. The secret to their success lies in the unique characteristics of the filter medium which was originally developed by K&N all those years ago in the dust, sweat and tears of desert motocross racing.

The high flow cotton gauze air filter is washable, reusable and built to last for the life of a motorcycle engine. K&N air filters consist of four to six sheets of cotton gauze layered between two sheets of aluminum wire mesh. This media is then pleated and oiled to enhance its filtering capabilities and overall performance. K&N Air Filters were created for an environment requiring maximum horsepower and enhanced acceleration in addition to protection from the dirt and dust. The result is an air filter that allows dramatically more air into an engine, is washable and reusable, and will protect your engine for the life of your ride.

This Product Fits:
Ninja 250R 2008, 2009, 2010, 2011, 2012
Ninja 300 2013, 2014, 2015, 2016
Ninja 300 ABS 2013, 2014, 2015, 2016
Product Style RevZilla Item # Manufacturer Product # Availability
K&N Air Filter KA-2508 857397 KA-2508 In Stock: Ships within 24 hours


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K&N Air Filter KA-2508 4.7 5 3 3
Recommended with my fuel tuner This is one of those things everyone recommends; I don't think you'll feel much difference but on a small-displacement bike every little helps. I have a Dynojet PCFC for my bike and the tuner that made my fuel controller map recommended also fitting a higher flow filter as a relatively inexpensive measure to sharpen throttle response. It doesn't feel particularly different, but it's easy to fit and definitely easier to clean May 17, 2016
Easy Installation, So Far Durable It took a few minutes to install, did not notice a huge change in performance since it was installed in a ninja 300. But overall its been durable and i know i dont have the paper filter constricting air flow. June 8, 2015
Easy Installation, Easy Breathing This air filter was so simple to install it's almost criminal. A couple of screws, pop off a panel and bam, you're sorted. Not a huge improvement in performance but definitely an improvement. My Ninja 300 revs smoother and throttle response is definitely improved. I also get a touch more fuel economy! Worthwhile DIY upgrade. The Ninja's should ship with a K&N as stock! January 12, 2015
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