MagnaFlow OEM-grade direct-fit catalytic converter for 2009–2010 Hummer H3 and H3T 3.7L that replaces the factory unit and helps keep the check engine light off. Designed to replicate OE flow and fit, it uses mandrel-bent tubing and stainless construction with precision welds. A donut gasket is included to help prevent leaks during installation, and the converter meets Federal/EPA emissions requirements for OBDII vehicles.
MagnaFlow Direct Fit Catalytic Converter 09-10 Hummer H3T 3.7L