The K&N 33-2942 high-flow air filter is washable and reusable, featuring four layers of cotton gauze treated with a special bonding agent to trap contaminants. It comes pre-oiled and fits in the factory airbox. Its multilayer construction is designed to improve airflow and increase horsepower and acceleration.
Under normal highway driving conditions, it needs cleaning every 120,000 km. The filter has a panel shape and is made of cotton gauze.
- Type: High-flow air filter
- Compatibility: BMW 1 Series, BMW 3 Series
- Filter material: Cotton gauze
- Shape: Panel
- Height: 38 mm
- Width: 232 mm
- Length: 292 mm
- Weight: 0.7 kg
- Re-oiling quantity: 61 ml
- Package contents: 1 air filter