my 2010 with 54k miles started to growl like a sport car in the last month. It sounds as though there is a crack on the catback pipe or the mufler but Acura couldn't find any visible defect. Has this happen to anyone here?

Anyway, my car is out of warranty but I but up a fight so Acura is picking up 90% of the cost of replacement for the entire system which is about $1,400.

 

We have 72000 mi on our '10 ZDX. I haven't noticed any difference in the exhaust sound, but I'm old and deaf. We also live in Memphis, where we had 4"of snow this week and they closed all the schools for two days. We also keep the car in our garage so it doesn't sit out in what little nasty weather we have.
Good for you that you got Acura to replace the exhaust system.https://acurazine.com/forums/images/...s/thumbsup.gif