Depending on the year of release of the attachment can vary.
Front bumper
-open the hood.
-take out the caps and remove the grille (rests on the latch, pull towards you).
-take out the clips under the grille.
-Unscrew two screws on each side and release the lining.
-wrenched the wheel depending on which side will parse the first.
-wheel arches take out the rivets and removed the fender liner.
-attach the fender liner to the side and Unscrew one screw on each side (spun up), which attach the corners of the bumper to the wings.
-on the perimeter in the bottom part Unscrew the screws (spun up).
-with the assistant release the latch in the wings and under the headlights and gently pulls the bumper itself.
-remove the connectors from the fog lights (if any).
-remove connector from the PDC (if any).
-if you have headlight washers, disconnected the hoses.
-remove connectors with additional electrical equipment (if available).
Rear bumper
-open the trunk lid.
-in the opening, Unscrew the screws and remove the tail lights.
-the rear lights take out one piston and Unscrew one screw on each side.
-on the perimeter in the bottom part Unscrew the screws (inserted from the bottom up).
-wheel arches, peel the fender liner.
-move the wing flaps to the side and Unscrew one screw on each side (spun upwards) holding the corners of the bumper to the wings.
-assistant release bumper latches in the wings (pull on yourself), and gently pulls back.
-remove the electrical connectors (if any).
How to remove front and rear bumper Infiniti QX56 (2004-2010)