12-31-2016, 07:01 AM | #1 |
Drives: 2012 ZL1 AGM, LLY Duramax,93formula Join Date: Nov 2014
Location: Cartersville, GA
Posts: 42
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ZL1 factory NPP exhaust packing blowout after mods??
So I was washing my car and looked into the tailpipe and thought there was a live animal in there!! Turns out the packing material in the NPP stock muffler is coming out. So I do have Forza controller and do keep it closed quite a bit. Defect or not designed to host that much power at WOT??
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2012 Ashen Gray ZL1 M6 LSXperts Stage III
-LSXperts Stage 3 cam, Kooks, Corsa, ported, HX, fans, pulleys, 850cc, Rotofab 2005 CCSB Silverado Duramax 4x4, studded, heads, tuned 1993 Pontiac Firebird "Thunderchicken" |
12-31-2016, 07:32 AM | #2 | |
Drives: 2012 ZL1 AGM, LLY Duramax,93formula Join Date: Nov 2014
Location: Cartersville, GA
Posts: 42
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Quote:
http://www.camaro5.com/forums/showthread.php?t=264328 Sorry didn't see this before
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2012 Ashen Gray ZL1 M6 LSXperts Stage III
-LSXperts Stage 3 cam, Kooks, Corsa, ported, HX, fans, pulleys, 850cc, Rotofab 2005 CCSB Silverado Duramax 4x4, studded, heads, tuned 1993 Pontiac Firebird "Thunderchicken" |
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12-31-2016, 07:59 AM | #3 |
Drives: 2013 Triple Black ZL1 / 2006 TB SS Join Date: Feb 2011
Location: MN
Posts: 2,250
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^^^ Lol. Mine didn't do it until I was heavily modded. It sometimes has the NPP rattle on cold start up if the flaps are closed (I have an ADM exhaust controller).
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12-31-2016, 12:09 PM | #4 | |
Drives: ZL1, 2013, tri-coat-red, manual Join Date: Nov 2013
Location: Michigan
Posts: 1,607
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Quote:
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01-03-2017, 07:31 AM | #5 |
Drives: 2002 Camaro SS SOM; 2015 Malibu LTZ Join Date: Dec 2010
Location: Queens, NY
Posts: 4,013
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Very common for GM exhausts. Its perfectly fine; You won't have problems, as a matter of fact the exhaust may get louder.
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'02 CAMARO SS SOM; 5.7L LS1/FLS6B
'08 TBSS AWD Black Granite Metallic '15 Malibu LTZ 2LZ Turbo '14 CAMARO ZL1 Blue Ray Metallic |
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