K&N Universal Air Filter Chrome Round Tapered Blue - 4in Flange ID x 1.125in Flange Length x 5.5in H

K&N Universal Air Filter Chrome Round Tapered Blue - 4in Flange ID x 1.125in Flange Length x 5.5in H

Marsoni

M251S

$33.59

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

K&N Universal Air Filter Chrome Round Tapered Blue - 4in Flange ID x 1.125in Flange Length x 5.5in HSKU: RG 1001BL UPC: 024844313324 K&N Universal Air Filter Chrome Round Tapered Blue 4in Flange ID x 1. 125in Flange Length x 5. 5in H K&N RG 1001BL delivers high flow filtration for racing vehicles radio controlled cars generators snowmobiles tractors and custom intakes. Clamp on design fits 4 inch ID tubes with stretchable rubber flanges up to 1 16 inch for precise secure mounting. Pre oiled cotton gauze media increases horsepower acceleration and

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First, depending on your car model, replacing your cabin air filter is VERY easy. With that out of the way, the shop wanted to charge almost 65 dollars to replace my cabin air filter. Decided to just buy one and do it myself. The only downside of waiting is that the air inside the car is not as fresh/clean when you're running your air. Anyways, you can usually get these kinds of filters between 20-45 dollars from auto part shops depending on the brand and features. I've used this brand and filter for the past 3 replacements on my car and they last just as long and filter just as well from my experience. No issues installing, and does in fact do a good job of filtering outside odors. Highly recommended for the price!

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Reviewed in the United States on March 16, 2026

Verified Purchase

James S. Smith

Draper, US

★★★★★ 5

great filter at a great price!

Fit perfectly in the filter box, looks well built as far as gas improvement its to early to tell, car drove fine with is installed but it was just installed last night and I have only driven it 30 miles since the install!! I will update if it changes but the price sold me on this along with other reviews! I would buy again at this point!

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Reviewed in the United States on September 5, 2025

Verified Purchase

Elijio Munoz

Charlottesville, US

★★★★★ 5

Good value

Good filter and cheaper than the auto-shop.

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Reviewed in the United States on March 26, 2026

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Kindle Customer