K&N Universal Clamp-On Air Filter 3-1/8in FLG / 4-15/16in B / 3-1/2in T / 4-3/8in H

K&N Universal Clamp-On Air Filter 3-1/8in FLG / 4-15/16in B / 3-1/2in T / 4-3/8in H

Marsoni

M251S

$73.99

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

K&N Universal Clamp-On Air Filter 3-1/8in FLG / 4-15/16in B / 3-1/2in T / 4-3/8in HSKU: RF 9160 UPC: 024844394293 K&N Universal Clamp On Air Filter 3 1 8in FLG 4 15 16in B 3 1 2in T 4 3 8in H RF 9160 for BMW 1 3 Series This K&N RF 9160 round tapered clamp on air filter delivers up to 50% more airflow than paper filters for gains in horsepower and acceleration. It fits universally across racing vehicles, RC cars, generators, snowmobiles, tractors, and pairs with K&N 57 0680 intake for BMW 1 Series 2007 2011, 3 Series 2007 2012, X1

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Oooooo these are so nice and soft and so warm! I am a nurse and work in an old hospital that is getting remodeled and there have been days we haven’t had heat and I have been very happy that I purchased these. My scrubs glide very nicely over these and don’t add any bulk. Definitely worth every penny! The fit is spot on and they wash up really well.

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Reviewed in the United States on December 12, 2025

Verified Purchase

Jay Bay

Boise, US

★★★★★ 4

Warm and Comfortable for Everyday Wear

Size: XX-Large, Color: Light Grey

This thermal set is really comfortable and does a good job keeping you warm in colder weather. The fleece lining is soft and cozy without feeling too heavy, and it works well as a base layer under regular clothes. The fit is true to size with a nice amount of stretch, so it is easy to move around in and does not feel restrictive. It is also lightweight enough to wear throughout the day. The only reason for 4 stars instead of 5 is that it could be a little thicker for extremely cold temperatures, but it still works well for most everyday use. Overall, this is a solid and comfortable thermal set that is great for layering and staying warm. I would recommend it.

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Reviewed in the United States on March 27, 2026

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Lak2968

Lake Worth, US

★★★★★ 5

Warm Thermals!

Size: Medium, Color: Black

Very comfortable and kept me warm in really cold conditions. Very soft and easy to wear.

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Reviewed in the United States on February 26, 2026

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