Injen High Performance Air Filter - 3 1/2 Black Oiled Filter 6 Base / 6 7/8 Tall / 5 1/2 Top 2026-bmw-m440i-xdrive-esi3927247 No need for any cutting

No need for any cutting

The rear mount upgrade comes with everything to safely ensure your water-meth system can be moved to the trunk

the included air filter oil remains suspended in the pleats of the cotton filter material

But overall

we entirely replaced the slim stock core and plastic end tanks with a full aluminum

Injen High Performance Air Filter - 3 1/2 Black Oiled Filter 6 Base / 6 7/8 Tall / 5 1/2 Top 2026-bmw-m440i-xdrive-esi3927247 No need for any cuttingWith a rich history in racing and the street performance, Injen Technology has proven itself as a leader in filtration engineering and technology. Lab tested and race proven, Injen's air filter line features state of the art designs and performance. All of Injen's 8 layer cotton gauze oiled air filters feature a tightly layered media that is specified for our use, along with a proprietary filter oil that includes highly advanced tackifiers to stop as