Works great with the brand new PowerFlow Kit!

The airbox on the KX450 is very restricted to be able to pass strict Euro sound standards, the stock closed airbox plug can be replaced with the screen vented Twin Air airbag plug which greatly increases air flow, more air = more power.

• Replaces OEM Airbox plug to allow better airflow enhancing performance of the KX450 airbox
• Protective screen allows increased air flow but screens out excess dirt to help keep your filter clean