The K&N E-2232 high-flow air filter is a washable, reusable filter for the BMW E46. It is made from four layers of oil-impregnated cotton material and serves as a direct replacement for the factory air filter. Its construction filters dust, dirt, and contaminants while allowing air to flow to the engine.
- Type: High-flow air filter
- Compatibility: BMW E46
- Dimensions: 83 x 70 x 171
- Material: Oil-impregnated cotton material
- Protective layers: 4
- Reusable: Yes
- Cleaning: Every 75,000 km or 5 years under normal highway driving conditions
- Installation: Direct replacement for the factory filter; pre-oiled and ready to install