Checking the front of my EC and looking at the pic of the bar fitted there are four fitting points which I have marked in the pic. The top two bolts connect the fitting kit to the bumper support beam which runs behind the upper bumper and a smaller support rail along the bottom bumper section. I surmise that you remove the bumper and fit the nudge bar carrier to the bumper support beam structure and then replace the bumper and connect the nudge bar to the frame where it protrudes forward from the air intake openings. I don't have an issue with getting the bumper off as I've had experience fitting a towbar to my partners car where the rear bumper had to be removed and replaced. It's a relatively simply job so long as you have a diagram to work from and the Russian web manuals cover the removal and replacement in a step by step process with a comprehensive diagram (see pic).
MY19 Eclipse Cross Exceed (Australia)