Could someone tell me what this is?

[gschroeder78]

It's going to be a couple more weeks before my FSM comes and this is kind of bothering me so could someone tell me what the the small box next to the factory airbox is? there is a hose that went from the airbox to this small box and I can't figure it out. My 1st guess wound be it has something to do with the EGR. 2nd guess is the resonator box everyone talks about.

The hose to my intake doesn't really reach so I'm wondering if it can be removed.

[camppain]

its your resonator it goes to the aiv

[tnord]

yeah, definitely resonator, i took mine out, 30min job, improves sound and maybe adds 1hp or so

[gschroeder78]

Thanks for the quick response guys.
So what is it's basic function and what happens when you take it off? Will my idle need to be adjusted or will my emissons be worse? Also do I need to cap anything off?

[240sxracer]

im glad you asked this i was thinking about the same thing it looks like the only thing you would have to block off is where it hooked up the the exhaust

im refering to the air inlet vale and componets not the resenator box

[geeaj]

That is the AIV valve, it routes exhaust gases back into the intake system. You can remove the resonator box, but it will start making a "farting" noise upon deceleration, if its not severly clogged.

The AIV has metal reeds inside that should be cleaned. There are deposits that are built up that can be removed with some carb cleaner. Once you have it cleaned. Put it back together and put a breather filter on it.