A lot of you guys sound like you think it directs
EXHAUST noise into the cabin?
That's not what it does at all, by the looks of it... it's attached to the air intake for the engine, that pipe goes to a box which allows no airflow, but does allow the transfer of sound waves (vibrations) - this is the large cylinder you see beside the left bank of the intake manifold.
From this cylinder, it looks like there is a pipe that I assume attaches to somewhere on the firewall. This would be used to transfer the vibrations from the cylinder into the cabin, to increase
INTAKE noise (like changing to an aftermarket pod filter), NOT to increase EXAHUST noise.
As for removing it... I think I will, when I install a straight intake pipe with a custom cold airbox, that should give a bit more sound, flashen up the engine bay a bit, along with changing the torque curve a little (hopefully an increase?) because of the unobstructed flow for the air.