Excessive Exhaust Noise from Center Muffler failure on Saab 900

The exhaust center muffler can fail causing excessive exhaust noise.

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Average mileage: 177,000 (177,000–177,000)
Exhaust & Emissions affected: 2.3L 4 Cylinder
5 model years affected: 1994, 1995, 1996, 1997, more1998
6 people reported this problem
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problem details
1996 Saab 900 177,000 mi,
not fixed. need to know if muffler needs to be replaced