The DNA air filter for the Smart Forfour 1.3L 454 is a high-flow air filter that fits in the factory airbox. It is washable and reusable, and is designed to increase horsepower and acceleration while providing filtration.
- Type: High-flow air filter
- Compatibility: Smart Forfour 1.3L 454
- Cleaning: Washable
- Reusability: Reusable
- Installation: In the factory airbox