E30 Zone

Replaced my air filter just now an upon opening the filter housing I found this hollow plastic tube (3 inches diameter open at both ends) sat vertically in the bottom. What's all that about then? Should it be there or has it worked its way loose from the pipes that lead to the airbox?

wheres the other end going to? any sort of place where it could grab air?

because i read about this somewhere on the forum about letting air into the bottom part of the air box too.. not sure though.

It should be poked into the inlet hole at the front of the airbox, so that it sticks out inside the box.

Cheers. I thought it seemed a strange thing to be there no attached to anything. Its now back wherre its meant to be.