The K&N 33-2332 high-flow air filter is washable and reusable, made with multiple layers of oil-impregnated cotton material. Its construction filters dust, dirt and contaminants while allowing air to flow to the engine. Designed as a direct replacement for the factory filter, it comes pre-oiled and ready to install.
- Type: High-flow air filter
- Compatibility: BMW 1 Series, BMW 3 Series
- Dimensions: 267 x 267
- Material: Multiple layers of oil-impregnated cotton material
- Cleaning: Every 75,000 km or 5 years under normal highway driving conditions
- Installation: Direct replacement for the factory filter, no tools required