K&N Universal X-Stream Clamp-On Round Air Filter 3.531in Flg ID/4in OD/5.969in H

K&N Universal X-Stream Clamp-On Round Air Filter 3.531in Flg ID/4in OD/5.969in H

Marsoni

M251S

$167.99

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

K&N Universal X-Stream Clamp-On Round Air Filter 3.531in Flg ID/4in OD/5.969in HK&N XStream Top Universal Air Filters take performance to the next level with the addition of a filter within the filter's top adding more filter area for higher air flow and a longer service interval. The XStream Air Filter provides awesome air flow and outstanding filtration. When racing, in any environment, racers need all the protection and airflow they can get. K&N delivers. All K&N universal air filters are constructed with ultra strong molded

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I use this on many builds to dampen the metal echo in cars, vans, and trucks. Just one sheet in the center of a body panel is a huge difference maker. You can also cover the entire surface and get added insulation value. The noise is greatly depleted and it's easy to install with a roller tool. Looks Great when done. Good Product I will use again!

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Reviewed in the United States on December 29, 2025

Verified Purchase

Robert Gheysens

Boise, US

★★★★★ 5

Night and day difference

Style: Tech Pack 28 sqft

Stuff works great. Really makes a difference in the sound quality of the vehicle.

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Reviewed in the United States on June 8, 2026

Verified Purchase