The exhaust flex pipe can fail causing excessive exhaust noise from the front/center area of the vehicle. The flex pipe is a flexible joint in the exhaust that allows for engine movement.Google+
Car Problem Reports
Saab 9-3 Excessive Exhaust Noise From Flex Pipe Failure
Saab 9-3 Problem
Exhaust & Emissions Affected: 2.0L 4 Cylinder Turbo, 2.3L 4 Cylinder Turbo
Average Mileage: 102,166 mi (51,000 mi - 150,000 mi)
Mesh cover on flex pipe all but rusted completely away leaving just the coiled tubing showing, allowing visible exhaust to escape from the area.
Visitor, 2001 Saab 9-3, 111,000 mi
flex section leaking and causing excessive noise. Likely going to replace that section of pipe. was hoping to find a lower cost, faster solution... no luck yet.
Visitor, 2000 Saab 9-3
hole in flex pipe . missing clamp also
excessive noise even after replacing the muffler, replaced flex pipe 1 year later, quieter.
I had to replace mine this year. Ugh
Visitor, 1999 Saab 9-3, 51,000 mi
Flex pipe rusted. Excessive noise ebb idle and acceleration.