Not sure what these things are called, but on an NS with a Mitsubishi steel bar fitted, when they cut the front wheel arch and stock bumper they insert 2 x rubber "gap fillers" under the lights which wrap around to the cut wheel arch.

These things are coming loose and on further investigation I have noticed they were originally glued to the body!

Can anyone recommend a paint and plastic safe glue to use to re attach these things? I don't want to use a glue that will eat them away!

Ill upload a pic when I get a chance.