The K&N 33-2449 air filter is a high-flow air filter made with layers of oiled cotton material, designed to increase airflow and trap contaminants. Its design also aims to increase horsepower. It is washable and reusable, and installs in the factory airbox.
- Type: High-flow air filter
- Material: Layers of oiled cotton material
- Reusable: Yes
- Washable: Yes
- Dimensions: 327 x 108 mm
- Compatibility: BMW X5, BMW X6
- TÜV approval: Yes