Just wanted to let everyone know in case you were not aware. There is an open recall on 07 Hummer H2's possibly other years for Catalytic Converter Mat Erosion, GM is replacing at no charge the entire cat pipe from the headers to the muffler connection. I recieved a post card from GM in the mail last week in reference to this recall. My local dealer confirmed this by checking the VIN#. This recall will fix issues with loss of power, check engine light and poor gas mileage.