The K&N 33-2350 high-flow air filter is reusable and made of four layers of oil-impregnated cotton material with a special adhesive. It traps dust, dirt, and contaminants while being designed to improve airflow to the engine.
The filter is pre-oiled and directly replaces the factory air filter. Under normal highway driving conditions, it needs cleaning every 75,000 km or every 5 years.
- Type: High-flow air filter
- Material: Oil-impregnated cotton material
- Layers: 4
- Maintenance: Clean every 75,000 km or every 5 years under normal highway driving conditions
- Condition upon installation: Pre-oiled
- Installation: Direct replacement for the factory air filter
- Compatibility: BMW M5, BMW M6