VZ SV6 2.5" pipes suddenly gone quiet

[Dyjoab]

Hoping someone might have some suggestions. I have a VZ SV6 with 2.5" pipes. Really nice sounding, but in the last week they have gone quiet. I have had this car for about 5 years and now sounds completely stock. Any ideas?

 

[sleepa]

Muffler falling apart and clogging the exhaust?
My resonator did that once, all the fibreglass started coming out the tailpipe, strangled the exhaust flow a bit, but sounded better again once it was all gone, had more drone though.

 

[Dyjoab]

Hadn't thought of that. Have had it suggested that it's maybe blocked cat converters or O2 sensors.

 

[MYVESSV8]

O2 sensors-don't think so!, if cats were stuffed the car would run like crap

 

[Not_An_Abba_Fan]

Any loss of power to go with it? My thought would be the cats are breaking up and partially blocking the exhaust if it isn't the muffler.

 

[Dyjoab]

No, no loss of power. Running like a dream. Taking it to an exhaust guy tomorrow for his "diagnosis".

 

[Dyjoab]

Turns out you were right Sleepa! Both mufflers collapsed inside.

 

[sleepa]

All good, thanks for letting us know, it might help someone else out in the future.

 

[CONROD]

Seems strange, both mufflers collapsed (stuffed ), yet running like a dream with no loss of power, you would have to wonder what advantage a 2.5" system has over the std :hmmm:
Good that you sorted it out mate, what brand were they also mate and did they say why they destroyed themselves internally