Depending on the body type of the attachment may vary.

Front bumper

-open the hood.

-under the hood, pull four clips.

-wrenched the wheel to the side.

-wheel arches Unscrew the screws that attach the fender liner.

-the fender liner, Unscrew the screws (spun upwards) holding the corners to the wings.

-at the bottom, take out the clips and release the latch.

-with the assistant gently pulls the bumper forward (don't want to break the wires).

-remove the connectors from the equipment (if any).

Rear bumper

-in the wheel wells, Unscrew the screws, release the fender liner.

-Unscrew the screws behind the fender liner

-open the trunk lid.

-remove Luggage compartment trim.

-for casings, Unscrew the screws and nuts.

-climb up under the car and Unscrew the screws and nuts.

-Unscrew the screws in the opening of the trunk.

-with the assistant gently pulls the back bumper (don't want to break the wires).

-snap together the connectors of the equipment (if any).