How much does this cost to the nearest dollar?

MagnaFlow Manifold Catalytic Converter California Grade CARB Compliant - Stainless Steel 3.75in Main Piping, Overall Length, Pre-and-Post Converter O2 Sensor - CA Legal Replacement
CALIFORNIA OBDII COMPLIANT - MagnaFlow has put this catalytic converter through extensive testing in order to make sure that it meets or exceeds CARB (California Air Resources Board) OBDII requirements for legal use in California and CARB restricted states on certified vehicles. This direct-fit catalytic converter is designed specifically for the Nissan Altima KEEP THE CHECK ENGINE LIGHT OFF - This MagnaFlow catalytic converter has been engineered to satisfy the vehicle computer control monitoring requirements for the specific applications listed. Such exacting standards keep the check engine light off while guaranteeing

Price is $683.00
Price: $682.81