- Dual-bonded foam design filters out even the smallest dirt particles, while allowing more airflow than two separate layer filters (flow bench proven)
- Twin Air filters are slightly smaller than stock to make them easier to change and to increase dead air space around the filter for better performance
- Flat foam sealing ring securely seats against the airbox, even in the worst riding conditions
Arctic Cat -- 400 TBX Automatic 4x4 -- (2004); Arctic Cat -- 400 Utility -- (2004); Arctic Cat -- 500 FIS Manual 4x4 -- (2004, 2003, 2005); Arctic Cat -- 500 TBX Automatic 4x4 -- (2005, 2003, 2004)