Hey guys I was wondering if you could help me out with something. I went to put on my winter tires today and noticed that the (what i think?) the catalytic converter seems to have a hole.

Now i'm not sure if it's the heat shield on it (if it has one?) or if the convereter itself is busted.

I haven't had any performance problems so i'm not sure which direction to go in yet.

Here's an image:

 

Think its just a shield.. I have holes in mine also..