The Hiflofiltro HFA4904 motorcycle air filter is a direct replacement for the original equipment filter and fits the factory airbox. It features filter media designed for modern high-performance engines and is compatible with Yamaha FJ motorcycles.
- Type: Motorcycle air filter
- Compatibility: Yamaha FJ
- Fitment: Factory airbox
- Replacement: Direct replacement for the original equipment filter
- Use: Modern high-performance engines