Removing "bits" from non-sport bumpers

[matt|H]

Have tried finding guides but no luck.

I want to remove the black bits from front/rear bumpers for colour coding but don't know how to get the buggers off.

Any help?

 

[JCC]

http://www.cliosport.net/forum/showthread.php?t=278273&highlight=removing

Pics aren't showing though.