What is this part and do i need it?

:
'08 Mazda 3s 5dr pearl white
Only answer if you actually know....

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its like a medal mesh that sits after my k&N and before the MAF. I just did resonator delete. Just tryin to get more flow.

I don't need opinions on whether or not to do it, just facts on whether or not it needs to be there. In my opinion it looks like it might just make a more uniform flow going in to the engine.... but regardless, restrictive as hell....

Thanks guys.
 

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