I'm in the process of fitting the LCR bumpers and skirts to my mk1 TDI. Mine are currently in the body
shop getting painted, but I did a test fit first to make sure I had everything I needed.
To remove the rear bumper, it's pretty straight forward. You need to remove the centre interior rear panel trim, be careful that you don't drop the large round fastenings under the spare wheel.
Next remove the two interior panels on either side of panel you have just removed, it's a couple of cross heads screws then a good yank to release the clips.
This will reveal two 10mm headed rag bolts and either side, so four in total, remove them.
Next, get your T20 torx out as there are a boat load all around the inner arches and at the bottom of the bumper.
Remove all these and the bumper, should be then released from it side mounting and come off fairly easily.
As for the side skirts, mine came with all the fixing, but I am a little reluctant to drill into the sills, as I may revert the car back to standard.
I found during the test fit that the skirts fit fairly snug to the sills and the bottom and end mounts would suffiently secure them. All I am going to to is bond the skirts to the sill.