Some DIY exhaust dual port muffler components 

Yes you will receive what you see in the pictures.  

Stamping for 4 dual port mufflers.

Stainless steel screen.

These are nice, because you can cut them and put holes where you need or want them to be.

Cut's very easy with tin snips. 

Feel free to ask questions. What you see is what you will receive.

No screws or rivets with this kit. You can use whatever you prefer, or whatever you have available. 
Rivets or screws both work great.