R33 Stock Airbox

[RBwhatever]

Hey does anyone still have their stock airbox?

On mine when you take the top cover off, on the inside of the cover is a cushiony paddy thing. It's quite thick.

Does anyone else have this and do you know what its there for?

To me it just takes up air flow space in the box, just wondering of it would be ok to remove or worth removing.

If ya's want pics I'll post them up later.

Thanks.

[sewid]

Hey does anyone still have their stock airbox?

On mine when you take the top cover off, on the inside of the cover is a cushiony paddy thing. It's quite thick.

Does anyone else have this and do you know what its there for?

To me it just takes up air flow space in the box, just wondering of it would be ok to remove or worth removing.

If ya's want pics I'll post them up later.

Thanks.

It's to quiet down the intake noise. Removing it does not harm the airbox in any way.

[RBwhatever]

It's to quiet down the intake noise. Removing it does not harm the airbox in any way.

Ah that makes perfect sense.

Thanks sewid

[mad082]

it is an insulation foam. designed to reduce temps. but since the stock airbox is plastic, and plastic doesn't conduct heat that well, it is of little use other than to keep induction noise down.

i'd remove it. it is probably also slowing air speed down.

[nizmo_freek]

I just removed mine, it looks like it would definatly increase air flow with it removed, it dosent seem to sound much different tho, if anything it was quieter but it did seem to sound a little bit different.

[RANDY]

Removing mine made the stock BOV more audible. I was quite convinced that it was a noise-reduction thing because of the size and placement of it.

Now with a split dump/front pipe, the turbo is VERY loud! I can hear it spooling from 2000rpm with the windows up.