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Rs airbox question

Stlinemull
Stlinemull
in Ford Focus Club

Featured Replies

On 5/11/2017 at 12:06 PM, Bannko said:

I think that changing just the upper lid will make difference only in sound rather then performance.

The important part of the ST/RS airboxes is actually the second inlet duct that brings much more air from the bottom. And also the ST/RS do not have the restrictive snorkel behind the grill.

I will fit mine at the end of the Jun/2017 to 1.5EB:

I definitely know that 1.6Ecoboost engines have problem to fit the second inlet duct because there stands a sound symposer in way. So you have to delete there first.

Hope that in 1.5EB it is different.

Good day.

Did you fit the second inlet duct?

 

 

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