Click & CollectFrom a shop near you
Pay LaterWith PayPal or Klarna
Free UK DeliveryMainland ex H'lands (over £25)
365 Day ReturnsNo-Fuss Refunds
15+ Years OnlineTried, tested, trusted
Free Returns*Mainland ex H'lands (over £25)
K&N Air Filters
High air flow and filtration technology
K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. K&N make over 1,200 different replacement air filters for virtually every vehicle on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. Their stock replacement air filters for street vehicles are covered by their famous K&N Million-Mile Limited Warranty and will be THE LAST AIR FILTER YOUR VEHICLE WILL EVER NEED.
Explore related categories…
Verified Customer Reviews for K&N Air Filters
K&N Best Around Air Filter
08 November 2023 by John H
Simply put you do not get any better than K&N Filters. My only regret was not getting one sooner.
Quality well made product with a really good guarentee which will last the lifetime of the bike.
Does what it says on the box
05 October 2023 by Paul R
Great fit, great quality, makes throttle more responsive. More power?? No idea, but sounds like it!!
01 October 2023 by Sean S
Perfect fit for my zx9r and gives it that bit more responsive feel about the bike
30 June 2023 by Anonymous
Didn't think a simple filter swap would make a difference to the engine sound.
Much deeper rumble when idle with a more pronounced rasp when accelerating.
No idea about performance other than a very subtle increase in low end torque and no negative affects of the swap on the fueling.
Easy to install.