Thinking of selling my original RS500 bumper and splitter and fitting a fibreglass or Kevlar/carbon one.

I had a look at an Xsport Racing one today and there doesn't appear to be any mounting/fixing lugs on the inside of the bumper.

So my questions are:-

How do you fit the fibreglass bumper ??
Has anyone from PF fitted one ??
Has anyone got any pics showing the stages of fitting the bumper ??

Cheers

Martin