Maintain the emissions system on your 2020 Chevy/GMC 3.0L Duramax with a high-quality replacement Catalytic Converter. Replacing the factory Catalytic Converter on your vehicle is easy with a direct-fit replacement that bolts into the OEM locations. Installing universal Catalytic Converters usually requires fabrication like cutting and welding as these components can be used for multiple different applications and exhaust systems. XDP carries Catalytic Converters from top industry brands like Magnaflow to replace the aging piece on your vehicle.