There is a 1/2" (or there abouts) hose that runs from the Turbo via a banjo bolt, what does it do? It was disconnected when I bought the car - it has run fine, I connected it, it still runs fine - ? I do have a Hoppen chip - is that part of the install, to disconnect this hose - it looks like a bypass of some sort - Thanks Dave 91 200tq 20v