Shopping Cart

Your cart is empty.

Your cart is empty.

K&N High-Flow Original Lifetime Universal Clamp-On Air Filter: High Performance, Premium, Washable: Flange Diameter: 4 In, Filter Height: 7 In, Flange Length: 0.625 In, Shape: Round Tapered, RU-2590

Free shipping on orders over $29.99

$63.98

$ 30 .99 $30.99

In Stock

About this item

  • ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
  • 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants
  • RUGGED CONSTRUCTION: K&N Universal Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
  • CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on the average miles driven per year of 15,000 miles)
  • EASY INSTALLATION: K&N Air Filters are pre-oiled and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains
  • UNIVERSAL FITMENT: Designed for use on a variety of applications
  • REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills
  • NO-HASSLE WARRANTY: 1-Year Limited Warranty
  • MADE IN USA: K&N Air Filters are proudly made in the USA for trusted quality & reliability


K&N Universal Clamp-on Air Filters are manufactured for a wide variety of applications and unique filtration needs. K&N performance High-Flow Air Filters are engineered to improve engine performance by increasing airflow. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle. These versatile filters are constructed with ultra-strong molded pliable rubber flanges that absorb vibration and allow for secure attachment. Available in round, tapered (cone-style), and oval designs, K&N offers thousands of clamp-on filters in a multitude of shapes and sizes that cater to many precise applications. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.


Robby B.
2025-09-02 09:29:00
Perfect fit just what I needed for my project car. And has that nice sound to it now.
Lars Barno
2025-07-30 17:59:14
Make sure you measure the diameter of the hose/air intake you intend to install the filter on. THEN match it to theINSIDE diameter of the filter flange you order. I know, sounds like a no brainer. But I managed to screw it up the firstfilter I ordered. Otherwise the filter works fine.....
Xavier Brown
2025-07-27 10:16:49
My car is still in the shop so I can't comment on mileage, but this feels durable and looks lovely on the car
Ryan Smith
2025-07-11 16:30:03
Fit perfect for my turbo. Would recommend to others
A.J.
2025-06-11 14:58:12
well i got it on time and it installed right away. No Problems. Works great and has been for months now. Would suggest before you select any K&N air filter that it will fit your car or truck. I took a long time picking this one out. Was shipped and sold by Amazon. Thank You!!!
BrookeS
2025-05-18 14:27:40
This thing works great. It came to me in perfect condition and fit the adapter I bought so that I could use my stock intake setup. My fuel efficiency is about the same but the sound my car makes at wide open throttle is wonderful. When the car is idling, you can hear the intake sucking in air, which really makes me doubt the stock airbox. Great purchase. I have been using it for close to 20k miles.
rfloyd
2025-04-28 19:46:08
great filter
Ryan
2025-04-25 11:15:59
Dimensions are exactly as described and this filter held up in my turbo application where the cheaper Chinese made filters fell apart.
Alan
2025-04-04 14:22:10
Nice filter good value
GazZrulzZ
2025-02-18 17:41:10
First filter split after 27 days. I am now on the 2nd filter, performing well but time will tell. I have binned off the jubilee clip for a t bolt clip and this seems to be doung the job without damaging the rubber surround.
Ashley
2025-02-13 15:55:01
Fast delivery, as exspected nice upgrade for the car