Perfect fit. 2 blocks are used on the front fenders. Fill in the space of the countersunk plastic screw you remove from the fender insert. Use the remaining 3 factory screws for other holes. Use a long block screw. On the back use 4 gold clips and 4 long screws with washers for each side. The clips slide over the holes in the bumper and the bolts go through and tighten. You have to push them into the body to align them so that they fit snugly against the body. 4 small screws. I have no idea what they are. Per.