The bumper is very simple, you need to Unscrew the four nuts and two bolts.
-with the inner side of the bumper (need to go under the car) turn off the key for thirteen two nuts (approximately under the headlight) on each side that attach the bumper to the side members.
-unscrew with a key ten ten bolts on each side that attach the bumper to the wings (unscrew it with caution, as these bolts are subject to corrosion and break easily).
-pulls the bumper in front while moving .
-in the trunk remove the rear valance.
-under the skin Unscrew the two nuts from the left and right side (approximately under the rear lights) and one bolt in the middle (if any).
-pulls the bumper itself.