What are some common issues with the Audi 80's exhaust system?

I've been experiencing some problems with my Audi 80's exhaust system. It seems like there is a strange smell and the vehicle sometimes sputters. What could be causing these issues?

There could be multiple factors contributing to these issues. One possible cause could be a leak in the exhaust system, which can lead to strange smells and decreased performance. Another possibility could be a faulty catalytic converter, which can cause sputtering. It's important to have a mechanic inspect your exhaust system to properly diagnose the issue.

I had a similar issue with my Audi 80 and it turned out to be a clogged muffler. This can happen over time due to the build-up of dirt and debris. I would recommend having a mechanic check the muffler to see if it needs to be cleaned or replaced.

Make sure to regularly check and replace your oxygen sensors as they can affect the performance of your exhaust system. I would also recommend using a fuel additive to clean out any build-up in your system.