Correct.

It looks like its had the air box replaced, im sure only the early cars with a remote ISCV have that connection, they have a pipe off the side of the inlet, to the ISCV, and then it recirculates back into the top of the airbox.

That bolt in there isn't pretty, but its doing its job! Look elsewhere i'd say.

First port of call, remove the ISCV and flush it out with brake cleaner, they tend to stick