Mishimoto Universal Air Filters are a high flow oiled cotton air filter, suitable for use either as part of a bespoke air intake or as a replacement for the filter in a Mishimoto intake.Cleanable and reusableSuperior filtrationSuperior airflowA Mishimoto Oiled Cotton Universal Air Filter is high performance air filter offering outstanding airflow and filtration.For applications where a full out of the box air intake is unavailable or not wanted, building your own intake can be a good option.If you're going to do this, you need to start with a good air filter.A Mishimoto Oiled Cotton Air Filter is a good option. Oiled Cotton offers great filtration. The combination of oil and cotton absorbs a lot of particulate. It also keeps water out of the inlet.By going to a cone or cylinder shape, you gain considerable surface area than a flat filter element. The more surface area you have, the more air can make it through the filter.This means that no matter how tuned your engine is, the air intak