1Applicable Model: Fit for KX100 1995?2021; Fit for KX80 1979?2000; Fit for KX85 2001?2022; Replacement for Suzuki RM100 1976?2003. 2OE Number: The part number of the reed valve system for reference is V384, please confirm whether it is consistent with the OE you need. 3Maximum Airflow: By doubling the effective reed tip surface, reed valve allows the engine to get more air with less effort. Help your engine get maximum airflow for maximum horsepower. 4High Horsepower Gain: The reed valve systems can increase the horsepower. The for VForce design expands peak power and increases horsepower throughout the power band 5Airfoil Technology: The reed cage design on the Reed Valve system incorporates airfoil shaped (flat on bottom, curved on top) reed tip surfaces which in turn increases the velocity of the fuel or air mixture as it passes through and over, creating the optimum fuel atomization.