Depending on the year and configuration of the body of the attachment points are different.

Front bumper

 

To remove the front bumper, you need to unscrew the bolts that attach its metal part to the body. ЧDetaching the plastic parts without removing the metal will be very problematic.

front bumper attachment points Hyundai Galloper

the scheme of fastening of the front bumper the Hyundai Galloper

Rear bumper

 

It is necessary to unscrew the bolts that secure the central part of the bumper to the side members. The screws are highly susceptible to corrosion, so before unscrewing them you need to treat them with WD-40 or something similar. It is impossible to remove the side elements without removing the entire bumper.

mounting points of the rear bumper Hyundai Galloper

diagram of rear bumper for Hyundai Galloper