I would say that you could probably tell by the contruction of it. I have the nissan oem bumpguard on my MO and I would honestly say that it is more cosmetic than functional. But I got it because I park in a garage everyday where the only way someone could really hit me is in the front. Its an added insurance against a very low speed collision. Im definitely debating on whether or not I should get a stronger/sturdier one.
Have you already got the set?
Can you post a pic of what it looks like?
I am thinking about getting that same nudge bar you are looking at.
I didnt buy it yet because I have been searching for the maker of nudge bars.