Installing a short ram intake, First time, so I have a few questions. Options

[Authentic]

A couple of you may recognize my name from a previous thread about swapping a BEAMS engine into my SS-I, which led to me deciding not to and saving up to just buy a SS-III Celica instead (or if you don't recognize me, you may remember now...or you'll go looking for my thread).

Long story short, I've decided to keep hold of my 3S-FE powered Celica and save up to buy something better in the near future. But for now, I may as well do a couple of mods to my daily driver; starting with a short ram intake.

First off, I am unsure what system my engine uses to test air flow/mass. I haven't been able to find anything removable/cleanable (apart from the air temp sensor in the air box) so I'm hoping that it wont be an issue when installing new piping for the intake.

Secondly, now this is when pictures come into play:



I understand that the hose running from the crank case/valve cover to the intake pipe is something to do with ventilation and positive pressure? Now I've seen cars with small air filters on their valve covers, but after some quick reading I found that some people believe this is bad as it messes with the pressure etc.

So basically, if I'm using aluminium piping for this air intake, what needs to be done with this hose?

[trdproven]

you can run a hose from the valve cover nipple to the intake pipe nipple. if you do this you must cap the one on the TB side.

If your intake pipe does not have the nipple or you choose not to, you can leave it as is like stock and run the hose from the valve cover to the TB side.

Any other nipples like the Injen pipe has can be capped cus you don't need em.