It turns out that the Growler's problems were not limited to the muffler. A few days at the spa seemed to do the trick for her, but there's still the issue of the rusted out catalytic converter. The good news is that federal law dictates that converters are covered by the manufacturer for 8 years or 80,000 miles. My car is 7 years, 11 months and 11 days old - and has 79, 565 miles on it. As you can imagine, we're going for a visit to the dealer on Monday.