The Magnaflow Catalytic Converter (4481658) is a high-performance, direct-fit replacement for your vehicle's stock catalytic converter. It is designed to reduce harmful emissions and improve engine performance. The converter features a stainless steel body and high-flow catalytic core that is designed to reduce emissions of hydrocarbons (HC), carbon monoxide (CO), and nitrogen oxides (NOx). The converter is easy to install and fits most vehicles, making it a great choice for anyone looking to upgrade their vehicle's exhaust system. The Magnaflow Catalytic Converter (4481658) is the perfect way to get your vehicle running at its best.