Magnaflow Conv DF 09-10 Hummer H3T 3.7L

If your Hummer H3 or H3T's check engine light is on, it might be time to replace the catalytic converter. This direct-fit converter from Magnaflow is designed to get your exhaust system flowing correctly again and meet federal emissions requirements.

Built with corrosion-resistant 16-gauge 409 stainless steel tubing and mandrel-bent pipes, this converter is made to last. Magnaflow uses 3D scanning to ensure the part replicates the original equipment's fit and function, making installation straightforward. The single laser fusion weld is designed to minimize the chance of exhaust leaks, and its compact design helps with thermal efficiency. You'll find installation is easier because it bolts right up, with no cutting or welding needed, and it comes with a donut gasket to help seal the connection.

This converter is EPA-compliant for federal emissions systems but is not approved for sale in California. Make sure to check your vehicle's emissions system type to confirm compatibility.