K&N Air Filter KA-2508
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  • K&N Air Filter KA-2508
MSRP
$71.99
Savings (25%):
$18.00
Price
$53.99

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Video Review

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.

4.8 / 5
Bang For The Buck
4.5 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
4.8 / 5
This Product Fits:
Kawasaki
Ninja 250R 2008, 2009, 2010, 2011, 2012
Ninja 300 2013, 2014, 2015, 2016
Ninja 300 ABS 2013, 2014, 2015, 2016, 2017
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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Returns

If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

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4.8 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
3
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0
0
0
Bang For The Buck
4.5 / 5
Features
5.0 / 5
Style
5.0 / 5
Ease Of Install
5.0 / 5
Fit & Finish
5.0 / 5
Durability
4.8 / 5
Bang For The Buck
5 / 5
Ease Of Install
5 / 5
Durability
5 / 5
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
Ride:
2013 Kawasaki Ninja 300 ABS
Bang For The Buck
5 / 5
Ease Of Install
5 / 5
Durability
5 / 5
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
Purchased
1 year ago
Ride:
2014 Kawasaki Ninja 300 ABS
Bang For The Buck
4 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
5 / 5
Good Product
The K&N filter is a good option to replace the stock filter with. Fit was snug but fit and works as advertised. If you need one get one
September 22, 2016
Purchased
2 months ago
Bang For The Buck
4 / 5
Ease Of Install
5 / 5
Durability
4 / 5
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
Purchased
7 months ago
Ride:
2015 Kawasaki Ninja 300 ABS
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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.

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Browse 6 questions Browse 6 questions and 21 answers
Why did you choose this?
RevZilla Store
use these on all my other vehicles
Richard F on Sep 6, 2016
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.
John R on May 30, 2015
use these on all my other vehicles
Richard F on Sep 6, 2016
Reputation and reliability
Charles R on Aug 5, 2016
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.
John R on May 30, 2015
Better quality than stock filter
Nicole M on May 14, 2014
Reputation and reliability
Charles R on Aug 5, 2016
Better quality than stock filter
Nicole M on May 14, 2014
Does it come with the Gel to coat around the edges for the ninja 250r?
Kelvin K on Sep 5, 2016
BEST ANSWER: Yes it comes with the gel.