DNA Air Filter for Triumph Trident 660 (21-26)
Upgrade your Triumph with the DNA Air Filter for Triumph Trident 660 (21-26). This high-flow replacement filter features DNA’s advanced FCd design and fits into the existing factory air box. It provides a stated 35.55% increase in airflow while maintaining 98-99% filtering efficiency. Visit our website for more products Dirt Street.
Advanced FCd Air Filter Design
The DNA Air Filter for Triumph Trident 660 (21-26) features DNA’s advanced FCd (Full Contour design). This design provides a high-flow replacement solution for the specified Triumph application.
In addition, the filter uses 4 layers of DNA Cotton and provides the stated 98-99% filtering efficiency. A high-quality EVA seal also provides airtight sealing and supports trouble-free filter installation.
Increased Airflow
The supplied airflow data shows a clear difference between the DNA filter and the Triumph stock filter.
The DNA air filter delivers 106.00 CFM, while the Triumph stock filter delivers 78.20 CFM. Therefore, the supplied figures show a 35.55% increase in airflow over the stock filter.
Road & Track Use
This DNA filter is designed as a High Flow Air Filter for Road & Track use. Therefore, it suits the applications specified for the Triumph Trident 660.
Furthermore, the filter fits into the existing factory air box. This makes it a practical replacement option while keeping the factory air box arrangement.
98-99% Filtering Efficiency
The filter provides 98-99% filtering efficiency according to the supplied ISO 5011 information. DNA uses 4 layers of DNA Cotton for the stated filtration performance.
At the same time, the filter maintains its high-flow design. This gives the product the specified combination of airflow and filtration for the Trident 660.
Easy Installation
Installing the DNA air filter is straightforward. Simply follow the installation instructions included in the Triumph workshop manual.
Moreover, the high-quality EVA seal helps provide airtight sealing during installation. Follow the recommended installation procedure to ensure the filter fits correctly.
Suitable for Racing Use
DNA also describes this filter as spark safe for racing use on highly tuned engines. This specification adds to its suitability for the stated Road & Track application.
OEM Cross Reference
The supplied OEM cross-reference number is:
- T2205986
Use this reference to help verify the correct filter application. However, always confirm compatibility with your specific motorcycle before purchasing or installing the filter.
Airflow Data
The supplied product measurements include:
- DNA Air Filter Air Flow: 106.00 CFM
- Triumph Stock Filter Air Flow: 78.20 CFM
- Increase in Air Flow: 35.55%
- Filtering Efficiency: 98-99%
- Filter Use: Road & Track
- Filter Design: DNA’s advanced FCd
- Construction: 4 layers of DNA Cotton
- Seal: High-quality EVA seal
- OEM Cross Reference: T2205986


















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