Has anyone removed a front and/or rear bumper cover?

[Cobra Jet]

If someone can be kind enough to post up either links or tech procedures (w/pics if possible) pertaining to removing both the front and rear bumper covers, it would be greatly appreciated.

I want to remove the outer bumper urethane/plastic from the actual steel supports & vehicle body in order to replace some damaged underlying retaining clips/parts in and around those areas.  I was looking at both my front and rear bumper covers, but was not 100% sure how to really disassemble those areas, plus it is getting colder here in NJ (plastic becomes more brittle), I did not want to break anything either...

Thanks!

[JP 91iS]

Look at the bumper from underneath, there are 2 holes where you can unbolt the bumper cover with rebar from the bumper mount shocks.  After that I'm not sure, I don't think I have ever separated the cover from the rebar.  You possibly have to remove the black bumper trim - which I've heard have clips that break easy.

[Wizard]

May help:
http://e30.bmwdiy.info/bumper-adjust/index.html

[Beastolizer]

Wizard that was a great guide for removing the front/rear bumpers. That will come in handy for me! Thanks!