Another update. Catalytic converter replaced. The service advisor says that the exhaust manifold also needs replacement. There was a recall a year or so ago and he told me (off the record) the dealership didn't do the recall correctly and basically, pencil whipped it. They also found some issues with the turbo. Fortunately, thus far no out-of-pocket expenses. However, it is very disappointing to note the actions of the dealer with the recall.