Weapon R SW Install Help

[furryfren]

Hey all!

This is my first post in the forums. Glad to be here!

I've been silently following the discussions and decided to install a Weapon R Secret Weapon SRI in my 9th gen corolla.

Thanks to member PEWPEW for his brilliant post which helped me a lot.
Weapon R Secret Intake w/ 2009 Corolla S w/ PICS!

The instructions on paper were a bit confusing, especially the metal bracket:



Mounting at the bottom:


Does the U-shaped part go between the clamp and the hose? This is what I did, its just sitting there unsecured.

View from the bottom:


More questions:

I have two stray hoses and a part of the MAF which I don't know where to attach to the Weapon R SW SRI.

In Photo A:


You will see at No. 1, I plugged up the side inlet of the SRI pipe with tape for the moment.

I believe the pipe at No. 2 should fit into No. 1, but if I do that what happens to No 3.?

Also where should the pipe at Number 4 go?

For a better look at the Numbers 3 and 4, see Photo B


I don't know what this unit is for, it was attached to the stock air filter box near the MAF.

Could someone please advise?

Really stuck here.