The product is a high-quality catalytic converter designed for Mercedes vehicles, made with stainless steel body material and featuring a bolt-on connection for easy installation. It is a reliable and performance-enhancing part that includes an oxygen sensor and is certified by EPA standards. Manufactured by AltoCars in the United States, this catalytic converter offers 100% accuracy of fit and universal fitment, making it a convenient and efficient choice for replacing the OE/OEM part number 823213 on the exhaust system of Mercedes vehicles.