K&N Universal Chrome Filter 4 inch FLG / 5 3/8 inch Bottom / 4 1/2 inch Top / 8 inch Height

K&N Universal Chrome Filter 4 inch FLG / 5 3/8 inch Bottom / 4 1/2 inch Top / 8 inch Height

Marsoni

M251S

$83.99

Get it in 3 business days with 1 day shipping. Friday, May 29

K&N Universal Chrome Filter 4 inch FLG / 5 3/8 inch Bottom / 4 1/2 inch Top / 8 inch HeightSKU: RC 4580 UPC: 024844084774 K&N RC 4580 Universal Clamp On Chrome Air Filter 4in Flange 5 3 8in Base 4 1 2in Top 8in Height K&N RC 4580 delivers high flow air filtration for racing vehicles radio controlled cars generators snowmobiles tractors and more with its centered 4 inch flange that stretches up to 1 16 inch for precise fit. This tapered conical filter with chrome top increases horsepower and acceleration through state of the art media while

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I installed this on a 2015 Acura RDX and it has been a fine replacement for the original air filter. The filter offers a good value and resembles the filter that it replaced and seems to be an equivalent replacement in every way. It fit into the housing perfectly and was just as easy to replace as the original filter was. The white color of the filter also makes it easy to see if an excess of dirt has built up on the filter. I'd recommend this filter. The materials are good, it offers equivalent functionality, and great value for the money.

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Reviewed in the United States on April 16, 2025

Nate D.

Birmingham, US

★★★★★ 5

Excellent quality and price

The picture above is of two different brand engine air filters. One is a Fram Extra Guard and the other is the KAX filter, which costs half as much. Can you tell which one is the cheaper KAX filter? There may be a difference in material that is not visible, but they feel and look the same. It seems like a safe bet to try out the KAX and see how well it performs/lasts.

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Reviewed in the United States on May 25, 2024

Falcore5

Belleville, US

★★★★★ 5

Just Right

Fits just right. The paper filter material seems to be the same quality as the brand name filter I took out with the only percievable difference is price and packaging. One nice thing here is that once taken out of the box, the filter is wrapped in light weight plastic so you don't get the new filter dirty when taking out the old one. Just unwrap it prior to installation for a clean install. Hope this helps.

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Reviewed in the United States on April 22, 2024

Sean D.

New York, US

★★★★★ 5

Same Quality, Cheaper Price!

Fits exactly as it should (2018 Acura RDX) and performs as well as any other brand I've used over the years. Construction and material quality appear as good as (or better) than any other off-the-shelf brand. I have no qualms about using this brand in the future and saving money doing so, compared to other brands.

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Reviewed in the United States on June 13, 2024