Twin Air filters are slightly smaller than stock, making them easier to change while increasing dead air space around the filter for better performance Dual-bonded foam design filters out even the smallest dirt particles, while allowing more airflow than two separate layer filters (flow bench proven) Flat foam sealing ring provides a secure seat against the airbox, even in the worst riding conditions Includes a laminated layer of backfire-retardant foam. FILTER AIR CRF250R
