Air silencer
 

Could some take a picture to show me how to take this thing off with a detailed discription??

On a 88 5.0?

u dont need a picture dude, trust me, just take it apart from the fender, and the silencer will fall down, you will have to pull it out through the bottom of the fender, unless you dont have fender wells, its easy, then mount you air box back up if your using it.

Ya, you simly take off the top of the airbox, disconneting it from the MAF. Then, remove the two nuts (10mm) that hold the rest of the airbox on, and set all that aside. In that same area, there are 3 nuts that hold on the air silencer around that hole in the fenderwall, take those off and the silencer will fall into the fender. Wrestle it out and you are done.