The DNA air filter is a high-flow filter designed for the factory airbox of the BMW Z4 35i E89. It is washable and reusable, and its design aims to increase horsepower and acceleration while maintaining filtration.
- Type: High-flow air filter
- Construction: Washable and reusable
- Fitment: Factory airbox
- Compatibility: BMW Z4 35i E89 3.0 l, 2009–2017