It's actually more straight forward than I thought, mount them upside down and cut some of the sensor backing away for the middle ones. I cut my holes with one of those flat drill cutters (don't know their name) and bond them on the back of the splitter. You do need to hack a big hole in the original bumper behind each sensor but hopefully I'll never need to see behind there again! I even managed to sell the old fog light shrouds on the bay.Is it the one manufactured by CSR and advertised on ebay? I'm looking at one of these my self. I fancied the sportline one but can't be bothered with parking sensor and foglight hassles on my caravelle.