hey guys, i have a 96 accord ex, 2dr. recetly afater winter, i check under my car and found that my cat had rust spot on it and sometimes on idle it shakes like lose metal, i jsut wana make sure its my exuast piping not otehr things

 

The Cat usually has a heat shield around it, the bolts rust out and the shield rattles.
You'll have to get under there and look at it closely.

 

ty