There are a few problems that can occur with a Ba or Wrx catalytic converter. Here are some of the most common: 

1. The converter can overheat and fail. Overheating can cause the converter to break down, which can lead to poor performance and potentially even a serious engine problem. Check out this link to buy the best Ba or Wrx Catalytic Converter.

2. The converter can also experience wear and tear. This can lead to decreased performance and possible failure.

3. The converter may also develop clogged orifice plates, which prevents the engine from getting the full benefit of the fuel-air mixture. This can lead to reduced fuel economy and increased emissions. 

4. The converters can also experience a crack or leak, which will result in poor performance and potentially a serious engine problem.

5. Finally, the converters can have their valve seats damaged by particles from the air filter or other substances. This can cause poor performance and potential failure of the converter.

If you're in the market for a new catalytic converter, you'll want to keep an eye out for Wrx and Ba Falcons. These converters are some of the best on the market and can provide significant performance gains over traditional converters. Plus, they come with a host of other benefits that make them a great choice for your car. If you're in the market for a new catalyst, your search has been narrowed to just a few advantages. If you're looking for an upgraded performance and fuel economy, look no further than these fine options.