The DNA free-flow air filter for the 1.4-litre petrol Ford Focus is designed to fit the existing factory airbox. It is washable and reusable, and is designed to increase horsepower and acceleration while providing filtration.
- Type: Free-flow air filter
- Compatibility: 1.4-litre petrol Ford Focus, 8/07–08
- Fitment: Factory airbox
- Maintenance: Washable and reusable