Air Filter Pipes?

[paulw]

1.9DG 1986 (water cooled)
On the Air filter box there is the main inlet coming in from the outside of the engine compartment, then there are 2 other inlets that take 40mm ish pipe.
Both my inlets are minus the pipes, Should it have pipes and where should they be located.
I presume one is for cold start and should be positioned near to the exhaust?
What about the other, any ideas please.
Thanks Paul

[Mocki]

the earlier exhaust system had a "exchanger" on one of the "j" pipes that the pipe fitted to, but you dont have that on a later one, and itsnot needed in this country anyway.....

[paulw]

Thanks Steve