I bought a set of the front rubbers and my experience was a little different.
The end bolts on the rubbers were too far in and so required a lot of stretching and some effort to get them in the original holes. On one of them the bolt pulled out of the rubber. I ended up returning them for a refund.
With the OEM strips the biolts are pegged into the rubber by a square metal plate about 10mm square and so they won't pull out. These replacements didn't have anything on the end of the bolt to tie it into the rubber. The end on the one that didn't fail also kicked up a bit due to the pull and stretch on the bolt. On the one that failed the bolt t wasn't over tightened after it made contact with the bumper, the bolt.pulled out before the rubber was flat onto the bumper.
On the plus side the rubber profiles and quality seems quite good and so if you found the same issue that I did you could redrill or slot the end holes in the bumper to reduce the pressure. If this was done I'm sure they would work just fine.
Edited by GregTas, 24 December 2017 - 09:36 PM.