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♻️ Drive smarter, perform stronger — the filter that never quits!
The K&N High-Flow Original Lifetime Universal Clamp-On Air Filter (RU-2590) is a premium, washable air filter designed to increase horsepower and acceleration while providing superior engine protection through its 4-layer cotton gauze media. Engineered for durability and universal fit, it requires cleaning only every 75,000 miles, reducing waste and maintenance costs. Proudly made in the USA, this filter offers a cost-effective, eco-friendly upgrade for professional drivers seeking lasting performance.
| ASIN | B00062Z21E |
| Best Sellers Rank | #718,137 in Automotive ( See Top 100 in Automotive ) #145 in Automotive Performance Air Filters |
| Brand Name | K&N |
| Customer Reviews | 4.5 4.5 out of 5 stars (161) |
| EU Spare Part Availability Duration | 5 Years |
| Fit Type | Universal Fit |
| Global Trade Identification Number | 00024844032195 |
| Included Components | 4"FLG, 5-3/8"B, 4-1/2"T, 7"H |
| Item Dimensions L x W x H | 10.81"L x 6.25"W x 6.25"H |
| Item Type Name | 4"FLG, 5-3/8"B, 4-1/2"T, 7"H |
| Item Weight | 1 Pounds |
| Manufacturer | K&N Engineering |
| Manufacturer Part Number | RU-2590 |
| Manufacturer Warranty Description | LIMITED WARRANTY |
| Model Number | RU-2590 |
| OEM Equivalent Part Number | RU-2590 |
| Product Grade | Replacement Part |
| Shape | Round |
| UPC | 024844032195 |
| Unit Count | 1 Count |
L**O
Good filter... measure CORRECTLY
Make sure you measure the diameter of the hose/air intake you intend to install the filter on. THEN match it to the INSIDE diameter of the filter flange you order. I know, sounds like a no brainer. But I managed to screw it up the first filter I ordered. Otherwise the filter works fine.....
R**.
K&N that speaks for itself
Perfect fit just what I needed for my project car. And has that nice sound to it now.
S**G
Better than stock
Works and fits perfectly
A**.
Wow!!!
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!!!
B**S
Exactly what I wanted
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.
X**N
Looks good
My car is still in the shop so I can't comment on mileage, but this feels durable and looks lovely on the car
A**C
Love K&N products
Used this on a custom made cold-air for my modified 94 Mustang GT. Fit and worked great...just all around great product.
A**A
Four Stars
Perfect replacement for my Dinan. Though the Dinan was cheaper the shipping cost killed the deal... by a lot.
A**N
Nice filter good value
D**N
Merci KN c’est la troisième voiture que j’équipe d’un filtre à air kn et les résultats sont là ! C’est top top ! 🔥
G**Z
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.
A**Y
Fast delivery, as exspected nice upgrade for the car
Trustpilot
1 month ago
2 months ago