K&N 04 BMW 545i 4.4L V8 Drop In Air Filter

K&N 04 BMW 545i 4.4L V8 Drop In Air Filter

Marsoni

M251S

$55.19

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

K&N 04 BMW 545i 4.4L V8 Drop In Air FilterK&N washable, reusable High Flow Air Filters feature a state of the art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10 Year Million Mile Limited Warranty. K&N drop in replacement filters are designed to install easily into your

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Seem to work and fit just fine and should be better than a cheap paper filter. They cost more but I change the oil on the 5's and the filter on the 10's so it evens out. Not going more than 10K on the filter. If you are only going to use the filter for 5K miles I would stick with the Toyota factory filter. I use the K&N filters on a 2017 Toyota Sienna and a 2018 Toyota Highlander. Both are V6

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Reviewed in the United States on October 23, 2025

Verified Purchase

David Benjamin

West Palm Beach, US

★★★★★ 5

Filter

Size: (Pack of 1)

Great product

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Reviewed in the United States on February 25, 2026