3GRX7

iTrader: (1)

I just removed my airpump and plugged the airbox where the pump was getting the air from. I noticed on the side of the airbox, there's a hose/pipe that goes nowhere but down. Can this be plugged? Someone told me that it's there to help the airbox "breathe", but I thought it's just a way for hot air to enter the airbox.

The spot I'm speaking of is circled in red.

Thanks,

Ian

HKNY

iTrader: (2)

its been awhile since i had the stock airbox in ,but i sorta remember it just sitting below hooked up to nothing

rynberg

That's the "mystery hose", it serves as a vent for the BOV and CRV.

FD3S2005

iTrader: (11)

what rynberg said

yuichiror

iTrader: (1)

Yup, it's the hose to nowhere.

cewrx7r1

iTrader: (2)

Once again the ACV system relief valve muffler exhaust hose rears it's mysterious head to confuse some people.

3GRX7

iTrader: (1)

"To plug or not to plug, THAT is the question"

Whaddaya think?

preludesh2000

iTrader: (1)

like said its a hose to nowhere...bought my fd bone stock and it had that hose ...and ran perfect...

brad

adam c

iTrader: (2)

Leave it on. No need to plug it.

Monkman33

iTrader: (28)

probably dampens the sound when there is pressure being vented. I dunno.

rexhvn

What would happen if that hose was disconnected? Would it create any issues or just create increase in sound of the stock BOV?

Juan

iTrader: (28)

Normally the other end of the hose is open. It curves under the air box and doesnt connect to anything. It's just a vent.