The BMC DIA barrel filter is an air filtration system with a plastic airbox that includes an airflow diverter and a reusable filter. Its design is intended to deliver intake air to the engine at greater speed and capacity than traditional systems.
- Type: Barrel filter
- Airbox material: Plastic
- Fitment: Universal
- Diameter: 70–130 mm
- Filter: Reusable
- Package contents: Flexible hose, connector housing and two reducers