Muffler Failure


Apollo

GT Owner
Mark IV Lifetime
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Aug 5, 2006
2,478
Pahrump, NV
Ti is very stable at temperature. It does not expand much but it does not dissipate heat much.
Titanium has a low coefficient of linear expansion which is equal to 5.0x10^6 inch per inch/°F, whereas that of stainless steel is 7.8x10^6
55219
 

roketman

GT Owner
Mark IV Lifetime
Oct 24, 2005
7,333
ma.
So in layman's terms...
 

tpraceman

THEE GT OWNER
Mark II Lifetime
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Feb 20, 2006
2,811
Washington Michigan
Titanium when heated doesn't expand as much as SS. So its shape and size doesn't change very much. About 30% less.

Ti would make a terrible heat sink as it doesn't transfer much heat. But it will carry it out the tail pipes and not lose as much heat. And thus it doesn't shrink and expand ery much.

Maybe why many of the PPF guys stay clear of the Ti system tail pipes.

Key Titanium is a pure metal.
Stainless is a alloy mix mostly Iron and lots of Chrome & traces of other stuff.
 
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GTMD

GT Owner
Mark II Lifetime
Jan 4, 2011
845
NorCal
Anyone know if there is a performance gain with this pipe? I can’t tell from the video if there is any difference in the quality of the exhaust note.
I'm curious to know this as well. Looks gorgeous. Also states that it only weighs 5 lbs. What does the stock (non-Ti) cat back weigh in at?
 

DBK

The Favor Factory™
Staff member
Le Mans 2010 Supporter
Jul 30, 2005
15,006
Metro Detroit
You're not going to gain any power by swapping the cat back. It's a lot louder and weighs less. The factory Ti is actually quieter than the standard muffler.
 

GTMD

GT Owner
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Jan 4, 2011
845
NorCal
Gotcha. Thanks Dave!
 

tpraceman

THEE GT OWNER
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Washington Michigan
Is that a baby picture of Frank?
 

fjpikul

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Belleville, IL
Ha ha raceman. Good one.
 
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Biginch Blake

GT Owner
Mark II Lifetime
Nov 4, 2008
932
Rockville, Indiana
I had my car at Ray Skillman for service up dates and installation of new transmission coolers. They had completed the work and were checking out other items before re-installing the bottom shields. They noticed discoloration on one of the mufflers and found that it had cracked and was leaking exhaust. This failure will cause excessive heat and exhaust gases to be released into the back portion of the car. There are a lot of problems this could cause.

Because they went the extra mile is the only reason this was found. It may be something you would want your servicing dealer to inspect. See attached photos of failure. PS: Forgive my crude drawing skills. My new muffler is on the way to their shop.
 

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STORMCAT

GT
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May 25, 2006
7,463
Ft. Lauderdale
I know of another one that cracked in the exact same spot...
 

Sinovac

GT Owner
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Jul 18, 2006
5,740
Largo, Florida
I’m glad your dealer is taking good care of you. Standard or Akrapovic muffler?
 

Biginch Blake

GT Owner
Mark II Lifetime
Nov 4, 2008
932
Rockville, Indiana
I’m glad your dealer is taking good care of you. Standard or Akrapovic muffler?
WHAT! You got me, it’s a muffler, came on the car.
 

mmlcobra

GT Owner
May 25, 2013
1,121
I believe the Akrapovic is the titanium version.
Mark
 

Biginch Blake

GT Owner
Mark II Lifetime
Nov 4, 2008
932
Rockville, Indiana
Not sure if this portion of the exhaust is included in the titanium option. I did not get the titanium exhaust.
 

Sinovac

GT Owner
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Jul 18, 2006
5,740
Largo, Florida
Yeah, Akrapovic (Xcentric can help with the pronunciation) is the optional titanium muffler.
 

Xcentric

GT Owner
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Jul 9, 2012
5,213
Myakka City, Florida
ah CRAP o vitch
 
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Simon

GT Owner
Mark II Lifetime
Feb 19, 2013
1,086
Houston
Blake are you considering an aftermarket xpipe?
 

Sinovac

GT Owner
Mark II Lifetime
Jul 18, 2006
5,740
Largo, Florida
Who is making the aftermarket pipes? I see that Brian has one.
 

Sinovac

GT Owner
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Jul 18, 2006
5,740
Largo, Florida
ah CRAP o vitch
I know. I like when you explain it. Have you seen Mike Hunt?
 

BAT

GT Owner
Mark II Lifetime
Oct 11, 2012
946
Central Mitten
Who is making the aftermarket pipes? I see that Brian has one.
Heffner