Thanks for the reply. I did find out where it goes. On drivers side below evap canister area. There's two of them. Seems like some type of muffler. Not really sure, but I put it back on and seems to stay put so far.
Funny, I had posted the same thing about a month ago and thought someone was replying to my original post. Didn't realize if was a different post. Thanks for explaining what it is and glad u found where it belongs as well.