Depending on the year of manufacture, the mounting locations may vary slightly.
Front bumper
-open the hood.
-under the hood, unscrew the two screws and take out the seven pistons (inserted from top to bottom) that secure the upper part of the front bumper.
-above the headlights, unscrew one screw on each side that secures the upper part to the wings (to get to the screws you need to bend the rubber seals).
-from the bottom side, unscrew ten screws (twisted from bottom to top) that secure the lower part).
-turn the wheels to the side.
-in the wheel arches, pull out three pistons on each side and release the fender liners (front part).
-move the fender liners to the side and unscrew one screw (two screws) on each side (twisted from bottom to top) that secure the sides to the wings.
-with an assistant, release the bumper from the latches in the wings and carefully pull it forward (watch the wires).
-remove the electrical connectors (if any).
Rear bumper
Coupe / Sedan / Convertible
-open the trunk lid.
-in the luggage compartment we release the side trims.
-behind the casings, unscrew three nuts on each side, release them from the clamps and remove the rear lights.
-take out the four pistons (inserted from top to bottom) that secure the upper part of the rear bumper.
-from the bottom we take out two pistons and unscrew the two screws that secure the lower part.
-in the wheel arches we take out the pistons and release the fender liners (rear part).
-move the fender liners to the side and unscrew one screw on each side (twisted from bottom to top) that secure the corners to the wings.
-release the latches in the wings (pull the corners toward you).
-release the latches in the trunk opening.
-with an assistant, pull the bumper back (watch the wires).
-disconnect the connectors of the electrical equipment.
How to remove front and rear bumper Infiniti G35 (2002-2007)