How easy is it to..

Remove the rear diffuser?

As a brick must of flicked up in between the exhaust and difuser and is now rolling around in there! Annoying...
 
There is 4 bolis and a series of clips, firstly undo the two rear bolts which are under the rear corners of the bumper and then there is another two at the front of the defuser, once the bolts are out the defuser will hang down to the rear, you just have to unclip the rear fron umderneath the number plate

I hope this helps

rich