I have a 91 Prelude SI that has had some modifications. I'm trying to fix her up and put everything back to stock. The airbox has been removed so I replaced it
with one I found on ebay. There is a hose going into the intake and one that goes to the front of the car, but the question is, Where does the hose that comes out of the backside of the airbox go? It goes behind the engine, but I don't see anything back there to hook it into.. The hose is about 2" dia and I have it hooked to the airbox and the other end is just sitting behind the engine at the moment.

I don't see anything in the manual about this.

Thanks in advance for your help.
Fixit

 

That hose dead ends into a chamber that bolts to the subframe. I forget where it shows in the manual though.

 

It just goes to a sound resonator that sits bolted up to the back of the intake manifold. It is not necessary, it really is only to reduce the sound that is made by the intake. For stock purposes, but if its not there, it won't make a difference.

Sean

 

Thanks you Guys.. I appreciate the help.