The DNA Motoring OEM-CONV-03 Exhaust Manifold Catalytic Converter is designed for specific vehicle models such as the Malibu, G6, and Aura. It is EPA OBDII approved and features a 2.25-inch inlet and outlet diameter. Made of stainless steel and ceramic materials, this catalytic converter includes a converter, gasket, and hardware for direct replacement in the front of the vehicle. It also has an oval shape and a 6.125-inch catalytic converter body length, making it a reliable choice for those looking to replace their current converter with a high-quality, durable option.