About 6 month ago I started to notice that my exhaust was turning a brown color. I didn't think much of it since an exhaust can change different colors. Yesterday I crawled under my car and it is rusting. My car is less that 2 years old straight from the factory and the entire exhaust system supports and all are rusting. I would this that salt was a big facctor but I live in a area that forbids salting the roads. We will be taking it to the dealer in a few days to see what can be done about this.