Ti Exhaust Getting Louder?
Thread Starter
Tech Contributor
Joined: May 2008
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From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
Ti Exhaust Getting Louder?
I'm thinking that the 10 year old Z06 Ti exhaust on my '01 is gradually getting louder with age.The idle tone seems to be somewhat deeper, and WOT will just about wake up the dead!
My engine is completely stock, with both pairs of factory cats in place, and it has no exhaust leaks anywhere in the system.
Does anyone know if the Ti mufflers have any type of glass matting inside the shells? The only reason I could think of, for the change in tone, is the matting is gradually blowing out.
Has anyone else noticed that their Ti's are becoming louder?
My engine is completely stock, with both pairs of factory cats in place, and it has no exhaust leaks anywhere in the system.
Does anyone know if the Ti mufflers have any type of glass matting inside the shells? The only reason I could think of, for the change in tone, is the matting is gradually blowing out.
Has anyone else noticed that their Ti's are becoming louder?
Team Owner
Joined: Mar 1999
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From: At the beach in little Rhody
I have thought the same recently, but mine is a H/C car and I had chocked it up to not driving it enough these days. I seem to recall reading about a dissection of the mufflers from a magazine circa 2001 and there was some glass in there as I recall. I would need to find the article as I squirlled it away for future reference.
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
I just so happen to have a pic of a CUT OPEN Ti and YES,, there is a steel wool type of packing on the main output tube.
Last edited by Bill Curlee; Jul 12, 2012 at 01:39 PM.
Thread Starter
Tech Contributor
Joined: May 2008
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From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
Melting Slicks
Joined: Apr 2009
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I actually find that my Magnaflows have become progressively louder over the last couple of months. Doesn't bother me because it is now just perfect. I think it is normal with most systems that contain some form of stuffing such as steel wool or fiberglass.
Thread Starter
Tech Contributor
Joined: May 2008
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From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
Thanks to all who responded.
I guess we can conclude that Ti mufflers are just like many of us old farts here on the Forum.
They both keep on getting better as they age!
I guess we can conclude that Ti mufflers are just like many of us old farts here on the Forum.
They both keep on getting better as they age!
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Team Owner
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From: At the beach in little Rhody
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From: LUBBOCK TX
Le Mans Master
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From: Belleville Mich.
Lt, no cats & 3" x pipe with Ti system.
It won't be loud at all.
I ended up going with the BB Quad Tip, 4" Bullets.
What did you say? I can't hear ya!!
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From: LUBBOCK TX
Thread Starter
Tech Contributor
Joined: May 2008
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From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
The old glass pack style muffles of the '60's had a single perforated tube, that was completely wrapped in glass wool matting from the inlet to the outlet. They would also become louder as they got older, and most likely from the gradual loss of the glass wool matting.
To answer your question, the glass or steel packing material is more likely to break up and get blown out of the perforated outlet tubes, rather than become matted and choke off some of the flow.
If the later were the case, they would probably become quieter, rather than louder as they age.
