HELP...stock air box problem

[TulBusa]

I did the stock air box mod and upon putting the box back on I noticed the bottom has 4 large knobs for hoses 1. blocked by pair mod kit, 2. already has clear block 3. one on back has a hose and the one that's puzzling me is the front one under the air intakes...is there a hose that goes into that or just leave open? I forgot from when I took it off. Thanks

 

[TulBusa]

I looked in the service manual and it doesn't show a picture or say anything about that particular one. Surely someone can tell me. Thanks

 

[rosco15]

I asked the same question and was told it's a drain and to plug it with a screw.

 

[rpm9001]

I was told the same when I asked. Mine in between the air intake is left open. Still do not know if it is correct.