Mate you need to take the bumper off and then take the strip off.
1) Take all the torque screws off around inner arches and under bumper.
2) Take plastic trim off from around the inside of the boot I advise to take the speaker part out first.
3) Once all plastic removed there are two bolts/screws at either end of the bumper which need to be removed from the inside ( Just below the lights)
4) Now your ready to ease the bumper off (start from the arches to lossen them up first)
5) Also don't forget to either discounect the number plate lights or take them out!
6) When putting the bumper back on the side parts need to slide in between some sort of grove so align these up first!!
Hope this helps.
Steve