TWIN AIR Back Fire Replacement Air Filter 156061FR Seat Foam Setup as sold (4 across

Setup as sold (4 across the row) or with a combination of your OEM stacks for two separate power characteristics

Shield has a positive stop to resist unintentional opening

Welded from mild steel then bathed in a four-step chrome-plating process

Includes a resonator to reduce offensive exhaust tones and a plate for the exhaust valve to eliminate CEL on the dash (where applicable)

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TWIN AIR Back Fire Replacement Air Filter 156061FR Seat Foam Setup as sold (4 acrossDual 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