This part seems to be designed to fail. The fabric on the inside of the flexible joint is simply frayed, creating unnecessary restrictions. Doesn't appear to have been cut properly. The front flange does not seat properly because the tubes that stick out to find the gaskets are too big for the gaskets and stick out too far. They must be hand sanded to get a proper seal. It just seems like this one was outsourced to the cheapest company and MagnaFlow put its name on it. I wouldn't buy any other and I definitely let my friends know they have Previa to stay away from it. Better to find one at a landfill or re-weld the old one.