Depending on the model year and body type of attachment may vary.
Front bumper
-open the hood.
-under the hood take out the rivets that secure the upper part.
-take out the caps on the perimeter of the lower part (inserted from the bottom up).
-wrenched the wheel depending on which side we understand.
-wheel arches take out the caps that secures the wheel arches and bumper corners to the wings.
-we release the latch in the wings (pull the corners themselves).
-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
-open the boot lid (rear door).
-around the bottom part pulls out six rivets (inserted from the bottom up).
-wheel arches take out the caps that secures the wheel arches and bumper corners to the wings.
-we release the latch in the wings and under the rear lights (pull the corners into themselves and back).
-with an assistant, carefully remove the bumper.
-snap together the connectors of the sensors (if any).
How to remove front and rear bumper Subaru Impreza (1992-2002)
How to remove front and rear bumper Subaru Impreza (2000-2007)
How to remove front and rear bumper Subaru Impreza (WRX) (2011-2016)