How come the Turbo and Superchargers are in the same slot with the intakes and not in their own slot?
It would make sense. Vehicles with regular fuel injected intakes would have 1 slot for the air box(none, cone filter, stock box etc.) with a separate slot for the induction if allowed(turbo, supercharger, N/A). Carbureted engines would have to be different, maybe different intake/ filter options in a drop down under the carb option.
This becomes even more annoying when combined with the tendency to base forced-induction intakes on the "base" (or least-powerful) available NA intake, leading to things like the modern Gavril RS models being significantly less powerful than before (and, in the case of the D15, frankly underpowered for their alleged date of manufacture) since the introduction of early-model intakes for the modern Gavril V8 engines. What makes it even worse on top of that is that it doesn't have to be that way (see Gavril diesel V8), but so often is.