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The MagnaFlow California‑grade direct‑fit catalytic converter for 2007–2008 Hummer H3 3.7L keeps the check engine light off by reproducing OE fit and function. Mandrel‑bent tubing, corrosion‑resistant stainless steel and a single laser fusion weld reduce leak risk while maintaining efficient exhaust flow. Installation is straightforward with included hardware; this CARB‑compliant converter is legal for use in California and CARB restricted states.
MagnaFlow 07-08 Hummer H3 3.7L Direct Fit Converter