The DNA free-flow air filter is designed for the factory airbox of the Citroen C4 Picasso and Grand C4 Picasso. It can be washed and reused, and its design aims to increase horsepower and acceleration while still filtering the air.
- Type: Free-flow air filter
- Compatibility: Citroen C4 Picasso, Citroen Grand C4 Picasso
- Reusable: Yes
- Washable: Yes