Catalytic Converter Direct Fit California Pre OBDII Converters Catalytic Converters for Honda S2000 at Andy's Auto Sport MagnaFlow High Flow Catalytic Converter for 2001 Honda Prelude 00 09 Honda S2000 200 Cell High Flow Catalytic Converter AP1 AP2 Evasive Motorsports: MagnaFlow Catalytic Converter Honda S2000 06 09. MagnaFlow specializes in superior catalytic converter and exhaust technology and each converter is designed to the exact original equipment specifications while keeping the Check Engine Light off. May require basic automotive knowledge for proper installation and professional installation is always recommended. While the majority of the Direct Fit Catalytic converter products do not require welding; cutting or bending; limited applications may require additional welding for optimal installation.