Has anyone had their stock cat's go bad on a SC3? I think mine are going because when i go full throttle, i get a strong rotten egg smell. I've searched this and didn't get much, a few people were noticing a similar problem but no results. They don't seem clogged up because the power is still good, It passes emissions every year as well.

The car is a 95 SC3 with around 125k.

 

Nobody else's car smell's like burning a@@ every time they go hard throttle up a steep hill or something??