while doing my plug change tonight, i came across this piece just laying around,

there is another piece laying around too, but i remember that was one of the egr plugs i deleted, but i dont' think i remember this being part of the egr,

looks like something that is supposed to be grounded, but not really sure,

it's on the drivers side coming off of the harness by the back plug

 

going off the top of my head but i think that mounts back down in there between the last two plugs

 

Mounts on top of the post that the fuel rails mount to(back posts), and is suppose to make your radio work better.

 

You have one of those on each side of your lower intake above the rails. It just screws down on top of the post, youll see the threads.