That is the resonator and it's sole purpose is to make noise. It does enter into the "dirty" side of the filter so not sucking in dirty air.
But...
It has been demonstrated that having it opens messes with sensors to some extent.
https://www.ft86club.com/forums/show...&postcount=295
And...
It is a brand new car that should not be broken so get it fixed. That is a pretty tough piece of plastic so I am very curious how it was damaged in the first place!