I want to get either an SS or Clubsport rear bumper, but I've got rear parking sensors at the moment. Could be a stupid question, but is it possible to transfer them? Will I have to drill new spots on the new bumper?
yes - you can transfer them and yes you will have to drill new holes BUT :
1. If you remove them, your current car will have holes in it.
2. Is the new car an identical color (if color coded) if not they will have to be matched?
They cost pennies! Like $300ish just buy new ones and sell your old car with reverse sensors to add resale value
u may come across a 2nd hand bumper with the holes already drilled