Broken baffles in the mufflers has been around for years. Not just a Camaro problem. This is what happens when you mass produce. And that TSB has been around for years as well. I have probably done a dozen or so over the last 10 years on all GM's. Sometimes things just break. Overall they have some good long lasting exhaust. I was a Service Manager at a Nissan Dealer for about 2 1/2 years. There exhaust rots and falls off after a few years.
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