Fiber packing coming out of exhaust... - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Robmnrd · 05-19-2022, 07:19 PM

Hey guys, anybody here ever have their (stock) muffler fiber packing start coming out the tailpipe? Just the other day I noticed what looked like steel wool hanging from the tailpipe on my driver's side, and when I investigated I found it to basically look/feel like fiber glass or steel wool or something along those lines, and sure enough it was "stuck" and "connected" going up in the tailpipe, so when I pulled on it I was only able to get the portion that was hanging out.

I'm not super concerned in terms of damage to the vehicle, but can this stuff cause blockage on that side/muffler reducing airflow? And in terms of sound, as it comes out, will it end up sounding more "machinegun" and louder? I'm not a fan of the tincan machinegun sound, and have loved my current setup (kooks LTs, catted, stock NPP with flaps open).

All thoughts are welcome and appreciated.

('13 ZL1, LTs, catted, stock NPP with flaps open, ~54k miles)

LevonH · 05-19-2022, 08:43 PM

Google search.
1 of many: https://www.camaro5.com/forums/showthread.php?t=359270

Robmnrd · 05-20-2022, 01:53 PM

Quote:

Originally Posted by LevonH

Google search.
1 of many: https://www.camaro5.com/forums/showthread.php?t=359270

Thanks man, I had already found that thread, but it does not address either of my concerns (the whole second paragraph of my post).

Any input for what I was asking?

KaBoom1701 · 05-20-2022, 02:32 PM

It's nothing to worry about. I pulled mine out back in 2015 and I'm running mods that put about 850hp to the crank.

Pull out what you can and dont look back.

LevonH · 05-20-2022, 03:42 PM

Answered above.

Little Walter · 08-10-2022, 07:42 PM

I experienced that problem as well and had the same concern about blockage just as you, fortunately the car was still under warranty and they replaced the entire exhaust.

05-19-2022, 07:19 PM	#1
Robmnrd Drives: 2013 ZL1 Join Date: Aug 2018 Location: Texas Posts: 110	Fiber packing coming out of exhaust... Hey guys, anybody here ever have their (stock) muffler fiber packing start coming out the tailpipe? Just the other day I noticed what looked like steel wool hanging from the tailpipe on my driver's side, and when I investigated I found it to basically look/feel like fiber glass or steel wool or something along those lines, and sure enough it was "stuck" and "connected" going up in the tailpipe, so when I pulled on it I was only able to get the portion that was hanging out. I'm not super concerned in terms of damage to the vehicle, but can this stuff cause blockage on that side/muffler reducing airflow? And in terms of sound, as it comes out, will it end up sounding more "machinegun" and louder? I'm not a fan of the tincan machinegun sound, and have loved my current setup (kooks LTs, catted, stock NPP with flaps open). All thoughts are welcome and appreciated. ('13 ZL1, LTs, catted, stock NPP with flaps open, ~54k miles)

05-19-2022, 08:43 PM	#2
LevonH Chevy Enthusiast. Drives: 2015 Camaro ZL1 Summit White Join Date: Jan 2019 Location: Calgary Area, Alberta Posts: 221	Google search. 1 of many: https://www.camaro5.com/forums/showthread.php?t=359270 __________________ Levon H. Bone Stock

05-20-2022, 02:32 PM	#4
KaBoom1701 KaBoom1701 Drives: 13' ZL1 Red M6 Join Date: Dec 2012 Location: I.E. SoCal (Yucaipa) Posts: 8,630	It's nothing to worry about. I pulled mine out back in 2015 and I'm running mods that put about 850hp to the crank. Pull out what you can and dont look back. __________________ Mods: Roto-Fab Intake, WW Res. kit & Big Gulp Air Scoop, Elite Catch Can, ATI Super Damper & 18% OD Pulley, LF Idler pulley bracket, Metco CC breather, ID850 Injectors, Stainless Power Headers w/ ceramic coating, TR71X Spark Plugs, JMS Fuel Pump Booster, Bo White TB, Tuned by Ted @ Jannetty Racing, Ron Davis HX, D3 Reservoir, Pfadt 1" Springs, Moreno Camber Plates, ZL1 Addons Splitter guard washers, Tow Hook kit & rock guards, Hurst Shifter Billet Plus 6 Speed Short Shifter, ZL1 DRL lighting harness, ZL1 Recaro Seats.

05-20-2022, 03:42 PM	#5
LevonH Chevy Enthusiast. Drives: 2015 Camaro ZL1 Summit White Join Date: Jan 2019 Location: Calgary Area, Alberta Posts: 221	Answered above. __________________ Levon H. Bone Stock

08-10-2022, 07:42 PM	#6
Little Walter Drives: ZL1 Join Date: Dec 2016 Location: New Orleans Posts: 260	I experienced that problem as well and had the same concern about blockage just as you, fortunately the car was still under warranty and they replaced the entire exhaust.