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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 Videos

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
Ninja 300 ABS 2013, 2014, 2015
Product Style RevZilla Item # Manufacturer Product # Availability
K&N Air Filter KA-2508 857397 KA-2508 In Stock: Ships next business day


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KN Air Filter KA-2508 5 5 2 2
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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Have a functionality, fit, or otherwise product-specific question about the K&N Air Filter KA-2508? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

K&N Air Filter KA-2508
Already Asked: 1 Question, 2 Answers
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RevZilla Store asked: Why did you choose this?
John R: This is one of those things that I'm sure makes a negligible difference objectively, but subjectively I SWEAR the throttle response improved when I installed this filter. Good build quality, easy to clean and re-oil. Probably not worth buying unless you have a full aftermarket exhaust system, but then again a slight perceived increase in throttle response might be worth it. May 30, 2015
Nicole M: Better quality than stock filter May 14, 2014