where should this pipe go to?

[Juz]

after posting my previous thread about a power problem i have been looking over the engine bay to see if i can spot a potential cause. i have no idea whether this could be related or not but i found a pipe which comes out of the smaller airbox, drops down but doesn\'t attach to anything. it rests in a metal bracket which holds it in place but i cannot see anything at the other side which it ought to connect to?

i have marked the pipe on the attached image, could any of you kind souls please tell me whether this is supposed to be unconnected or whether it should goto something else? thank-you...

[J4P RX]

Its unconnected.  Just a breather.

[Juz]

ah ok, thanks - i will continue looking for the problem!