2012 ZL1 muffler failure?

[1st Gen Forever]

I thought about that but I'm concerned if any blockage is being caused by it. The soot build up on my tailpipes doesn't appear to be happening on this one...

[Chevrolet Customer Svc]

Hello 1st Gen Forever,

I have read this thread and understand your situation here. I would like to possibly get involved and explore some other possible options. If you could, please private message me your name, VIN# and current mileage. Also, please send me your involved dealer’s information. I will look investigate your situation further.

Reggie B.
Chevrolet Customer Care

[ZO6 Bryan]

Originally Posted by 69NMYSS

Yup, you'll get a complete new exhaust. At least that's what they did on mine. However I was one of the first to take it to the dealership for the problem. At the time, they had never heard/seen such a thing. GM required dealership to take pictures and send mufflers to the engineering department. May be a TSB out now? All they did was replace mine, a month after they replaced, I noticed it happening again. Have not taken it in again as it does not seem to cause any problems (as far as datalog info reads).

This is what I was afraid of.

[ZO6 Bryan]

Originally Posted by Angrybird 12

I wonder if anyone has tried just pulling it out or snipping it off until it stops happening...

Yup, yanked it out and the remnants burned out and it hasn't recurred. I told my GM service manager about it and she said just bring it in and they would replace it. So far it hasn't recurred.

[Normagene]

Originally Posted by ZO6 Bryan

Yup, yanked it out and the remnants burned out and it hasn't recurred. I told my GM service manager about it and she said just bring it in and they would replace it. So far it hasn't recurred.

Recurrence, how could it, you yanked it all out and there's probably nothing left inside. Is it louder? What is the purpose of this steel wool looking stuff? Noise suppression? I could use some for my husband. OMG he's gotta stop eating so much Mexican food, its too noisy if you know what I mean. Do they make a muffler for that?

[1st Gen Forever]

Originally Posted by Chevrolet Customer Svc

Hello 1st Gen Forever,

I have read this thread and understand your situation here. I would like to possibly get involved and explore some other possible options. If you could, please private message me your name, VIN# and current mileage. Also, please send me your involved dealer’s information. I will look investigate your situation further.

Reggie B.
Chevrolet Customer Care

PM sent. Thanks Reggie!

[ZO6 Bryan]

Originally Posted by Normagene

Recurrence, how could it, you yanked it all out and there's probably nothing left inside. Is it louder? What is the purpose of this steel wool looking stuff? Noise suppression? I could use some for my husband. OMG he's gotta stop eating so much Mexican food, its too noisy if you know what I mean. Do they make a muffler for that?

No louder, the small amount I pulled out couldn't have much effect.

[ZL1 TIBS]

Originally Posted by Normagene

Recurrence, how could it, you yanked it all out and there's probably nothing left inside. Is it louder? What is the purpose of this steel wool looking stuff? Noise suppression? I could use some for my husband. OMG he's gotta stop eating so much Mexican food, its too noisy if you know what I mean. Do they make a muffler for that?

Too funny, I'll have to show this thread to my wife.

[davidcroft]

I haven't seen this in person yet....I wonder how common or rare this is
(I work in the service dept and see about a dozen NPP catbacks a week...as well as having it on my ss)

[joes407]

Originally Posted by Chevrolet Customer Svc

Hello 1st Gen Forever,

I have read this thread and understand your situation here. I would like to possibly get involved and explore some other possible options. If you could, please private message me your name, VIN# and current mileage. Also, please send me your involved dealer’s information. I will look investigate your situation further.

Reggie B.
Chevrolet Customer Care

my car has the same issue except not quite as extreme. the hairs arent actually touching the ground like yours but can still be seen in the bend and my dealer is saying the same B.S about there being no bulletin. my car is not modded.

[charlietuna]

sucks I would try another dealer This can't be the result of your mods...... tune...... etc.

[RedDragon]

Same happened with mine, I just cut it off. Hopefully they come out with a TSB soon with a real fix.

[Chevrolet Customer Svc]

Originally Posted by 1st Gen Forever

PM sent. Thanks Reggie!

No problem. I received your info and followed up. See messages for details. I will be in touch with you soon.

Reggie B.
Chevrolet Customer Care

[Chevrolet Customer Svc]

Originally Posted by joes407

my car has the same issue except not quite as extreme. the hairs arent actually touching the ground like yours but can still be seen in the bend and my dealer is saying the same B.S about there being no bulletin. my car is not modded.

Hello joes407,

If you would like, I can look into your situation as well seeing as though you have no modifications, I can investigate further. If you could, please private message me your name, VIN# and current mileage. Also, please send me your involved dealer's information.

Reggie B.
Chevrolet Customer Care