3 years and 34k miles on mine. Finally happened last weekend. Had a couple of scrapes on the underside corners of my front bumper. Pulled into a parking lot with what looked like only a small dip. WHAACK! Another scrape and now a small crack starting from the drivers side underside punched hole (support clip/rivot?) going up just a tad to the front vertical portion of the bumper. I drilled a 1/8 hole at the end of the crack for now.
Thinking of getting a lip, but not sure how much they cover on the front. I assume it will just crack again if fixed, so I may also buy a new bumper for now, unpainted. And keep it for down the road.