There is no separate bumper for models with OEM HIDs. I believe all bumpers are pre-marked for cutting out the washer jet locations. Just as all rear bumpers are marked with the cutting positions for fitting the reversing sensors. Here's Rimmer's facelift bumper listing. You'll see that there are minor variations for certain engine types, but not for the lamp washers.
Rimmer: http://www.rimmerbros.co.uk/Item--i-GRID001777
This also applies to Mark 1 bumpers for cars factory fitted with HIDs.
TC