Catalytic Converters - GM Duramax LLY

Magnaflow Universal Catalytic Converter fits 2004 - 2005 Chevy GMC 6.6L Duramax LLY.

If you've replaced your factory exhaust system with a CAT-Delete system, you may have found yourself in a position where you need to re-install a catalytic converter to comply with your local emissions laws. We can help you out with a MagnaFlow Universal Diesel Catalytic Converter. These universal diesel catalytic converters are specially formulated to control diesel exhaust. They contain a metallic substrate for enhanced durability and maximum CFM flow to help retain the flow characteristics that your performance exhaust system was designed to deliver.

These catalytic converters will NOT pass California Emissions. If you are having this item shipped to California, please understand that shipping will be a minimum of 2-weeks.