TWIN AIR Air Filter - CRF150R 150215 Throttle Body 12mm hex design allows for

12mm hex design allows for easier tightening

You can purchase the complete kit by ordering this item along with Part # ABY-09R1-REVB (sold seperately) or just this lower piece only for use with the stock uppers

75-inch diameter ensures the stock mufflers and most aftermarket mufflers will fit Includes oxygen sensor bungs

Carbon fiber end-caps

hardware to relocate the stock turn signals deeper into frame and full instructions with photos

TWIN AIR Air Filter - CRF150R 150215 Throttle Body 12mm hex design allows forDual 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