Hello,
I have a 2016 Traverse with just over 100k miles. Just wondering when other owners had to replace/repair any exhaust issues? Am I getting close to muffler/pipe/cat failure? I still need to crawl around underneath but thought I would ask here as well. Thanks.

 

Federal standards required them to last 5 yearsfor the cats; so they all went to stainless steel on the entire system...yours will be for at least 12. my 06 and 07 vehicles are still good.