K&N 18-19 BMW M5 V8 4.4L F/I Turbo Replacement Air Filter (Two Per Box)

K&N 18-19 BMW M5 V8 4.4L F/I Turbo Replacement Air Filter (Two Per Box)

Marsoni

M251S

$136.83

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

K&N 18-19 BMW M5 V8 4.4L F/I Turbo Replacement Air Filter (Two Per Box)K&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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We offer a 30-day return/exchange service after receiving.
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I love K & N air filters and always install them in my cars. This eliminated my cars Turbo lag in my 2019 Honda Civic Ex which has a 1.5L Turbo. Acceleration has improved and makes the car louder (I also have dual exhaust) I love how you don't have to change or clean it for 50,000 miles!! I know it's expensive but will last forever! Only issue was it was very difficult to install and a pain but this is more Hondas fault as I could not fully remove the plastic case where this filter goes under the hood even with tools.

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Reviewed in the United States on November 23, 2019

Verified Purchase

R. A

Boise, US

★★★★★ 5

Works great

Perfect fit

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Reviewed in the United States on August 7, 2025

Verified Purchase

Evan

Boise, US

★★★★★ 5

More power and better mileage

Put this in my 2017 CRV and have noticed much more pickup and better mileage overall. Usually I average 22mpg with mixed driving and this has me hovering around 25mpg and I get to have extra power on top of that. Install was straightforward and a breeze. Whole project is done in ten mins and your car is instantly more fun and getting improved MPGS

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Reviewed in the United States on November 30, 2024

Verified Purchase

Birmingham, US

★★★★★ 5

for lexus rx 350

well made and fits lexus rx350 fine

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Reviewed in the United States on September 4, 2025

Verified Purchase

Amazon Customer

Omaha, US

★★★★★ 5

Improves the air quality of you vehicle

Perfect fit. You can tell the difference in the quality air recirculation. Without a doubt an improvement over inexpensive filters. I highly recommend replacing any auto air conditioning and heating with this filter.

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Reviewed in the United States on March 18, 2026