The DNA Filters P-TR6N21-01 motorcycle air filter is designed for the 2021–2022 Triumph Trident 660. It features four layers of oil-impregnated cotton gauze, positioned between two layers of aluminium wire mesh. Filtration efficiency is stated as 98–99%, while airflow is 106 CFM—35.55% higher than the factory filter’s 78.20 CFM.
The pleated material is designed so that the edges of the pleats contribute to filtration, helping to ensure even airflow. The polyurethane frame absorbs vibrations, while the EVA seals resist fuel, oil and high temperatures.
- Type: Motorcycle air filter
- Compatibility: Triumph Trident 660, 2021–2022
- Filter material: Four layers of oil-impregnated cotton gauze
- Mesh: Two layers of aluminium wire mesh
- Filtration efficiency: 98–99%
- Airflow: 106 CFM
- Factory filter airflow: 78.20 CFM
- Airflow increase: 35.55%
- Frame: Polyurethane
- Seals: EVA