As we say in Sweden ”pricken över i:et” on the Alfa. (”The dot over the i”)
Good quality reproduction. should come with the mounting points pre drilled as elongated slots. In its current form, it takes modification of the marked drill points to make the splitter extendable. If you drill holes where they are marked, the splitter will not act as a splitter, rather a styling piece. Bottom of the splitter is also hollow, it should really be faired over like the original.