GR86 What's this box do in the engine bay?

[grzoostuff]

Does anyone know what this box on the left circled does?

I would have thought the air comes through the front right side into the air filter and then directly into the engine?

 

[GregKNorfolk]

It's an intake resonator, to remove unwanted standing waves that create booms or drone at certain speeds

 

[Conscript]

Ghost catcher.

 

[grzoostuff]

Thanks

 

[grzoostuff]

So with a KN cone filter, the intake resonator would be deleted.
I wonder if we could just block off the resonator to make more noise and maybe even an extra BHP and keep the stock air intake??

 

[grzoostuff]

Looks like someone has already tried it:

 

[JDS]

For what it's worth I blocked off the resonator on my WRX STi and it dramatically increased the intake noise. That does have the benefit of a big old turbo though...

 

[Cholmondeley-Biscuitt]

Looks like someone has already tried it:

I love the very last comment… “in our opinion it simply wasn’t worth the trouble, we just tried it so you don’t have to”

 

[GregKNorfolk]

Being on a side branch, it shouldn't affect the level much. It's tuned to resonate and take energy at a certain frequency, to remove unwanted resonance at a given engine speed.

If the weight of adding it has been signed off, it must have an effect and smoothen the intake noise

 

[Swizzle]

OTL SUPER SUCK Engine Dress Up Kit — Off The Line

Clean up unsightly bulk from your engine bay while gaining some extra juicy engine aspiration sounds! The Super Suck kit was designed to dress up your engine bay for a fraction of the cost of an intake! Both plugs are made from a high temp carbon fibe

www.offthelineperformance.com

been tempted by one of these myself

 

[grzoostuff]

Looks good and cleans up the engine bay, but that name doesn't sit right Super Suck