u/DeliveryKitchen9868

So installed a sport air filter on my , VW Jetta 2006 , 2.0TDI BMM , and i need to know what is this hose and what i can do with it? Because i no longer have the old setup , i will post a pic with the hose(image 2) and the air filter (image 1) so you can see the diff. But i rlly need some help😭