C5 Exaust Weld Failure
Thread Starter
Racer
Joined: Oct 2001
Posts: 250
Likes: 7
From: Kenosha WI
C5 Exaust Weld Failure
I had the welds on the muffler pipes fail at the flange on my 25,ooo mile 1998. The welds broke loose all the way around the flange. Welds didn't penetrate the pot metal flange. Has anyone else seen this failure?
Race Director
Joined: Sep 2004
Posts: 12,071
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From: Hoover Alabama
Originally Posted by T's 99
The drivers side came apart at the track a few months ago 
Mine is a 99, good luck with the fix.
Mine is a 99, good luck with the fix.
Race Director
Joined: Jan 2003
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From: Houston, Tx Got traction?
CI 5-6-7-8-9-10 Veteran
St. Jude Donor '07-'08
Originally Posted by MyBlueC5
The best cure is to put a cat back system on.
Chris
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Instructor
Joined: Apr 2005
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From: Lake Orion Michigan
Both pipes broke before 7,000 mi. on my '99. No weld penetration. Service manager (Fox-Rochester) claimed he never heard of this happening before. 
Then he threatened to charge me for repairs and denied me a loaner car.And when I picked it up, someone put extra miles on the odometer, it had a bend exhaust tip and a thick layer of dust on it. 
And they wonder why we don't come back. 
Then he threatened to charge me for repairs and denied me a loaner car.And when I picked it up, someone put extra miles on the odometer, it had a bend exhaust tip and a thick layer of dust on it. And they wonder why we don't come back.
Melting Slicks
Joined: Jun 2001
Posts: 3,123
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From: Orland Park Illinois
St. Jude Donor '06-'07
Originally Posted by hot-toy
I had the welds on the muffler pipes fail at the flange on my 25,ooo mile 1998. The welds broke loose all the way around the flange. Welds didn't penetrate the pot metal flange. Has anyone else seen this failure?
I have a ? tho--I have to drive my car about 3-4 miles to the installer's location. Will the hot exhaust gasses/heat etc., coming out of the mid pipe cause any problems to the underside of my car????
Any advice will be appreciated...Thanks.... 
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Haven't seen any posts on this in a while, but yes, there have been many cases of the welds failing. A good muffler shop should be able to reweld the flange back on the pipe.
Racer
Joined: Jun 2002
Posts: 250
Likes: 14
From: San Diego CA
I had the same thing happen four times. I would weld the flange back and it would last about 10,000 miles then break again. The last time it happened I just went out and bought a Corsa X pipe and haven't had a problem since.
Le Mans Master
Joined: Aug 2003
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From: ================ From Toronto ================ 9/11/01 FDNY 343 Never Forget
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St. Jude Donor '08-'09-'10-'11-'13-'14
This happened to a neighbor of mine with his 99. The stealer, oops I mean dealer wanted $1700.00 CDN for a whole new exhaust system. He told them to pound salt and got it welded for $20 at a friends shop.
