Airbox foam insert?

[jonst205]

Hi all, just about to fit an '06 airbox when I noticed the foam insert inside the base. I guess this is a noise-reduction device (induction noise). Anyone tried just removing the foam insert?

 

Cheers,

Jon

[KyleR]

I'm not sure what you mean... Pictures?

[jonst205]

No worries, will do that this evening. It's akin to a resonator box on Toyota's (separate box), but built-in to the airbox.

[jonst205]

 

View through the front intake, 'pocket' with foam visible at bottom.

 

Foam section removed.

 

[KyleR]

Hell mate I've never even noticed that, and I only just took my box off last week lol

[evilscorp]

never inspected my airbox in detail only swapped out filters and gave the bugs a shake out. may investigate

[brillomaster]

Question is, does it make any difference to the noise with the foam removed? Gotta love a bit of induction noise if available, the zed is pretty muted on the induction front as standard

[jonst205]

Question is, does it make any difference to the noise with the foam removed? Gotta love a bit of induction noise if available, the zed is pretty muted on the induction front as standard

 

You read my mind The only concern I have is that with it removed it actually disrupts the airflow into the stack as you have a big pocket for air to sit in. However I think it should be fine as, especially on throttle, the engine is actively pulling the air in at a fair old rate. I'm taking my old pre-06 box out shortly so will see if it has the same insert arrangement.

[jonst205]

Just to confirm the pre-06 airbox has the same arrangement, it's exactly the same apart from the larger trumpet/stack/whatyermacallit. I've removed the foam section to give it a try without.