What's the function of the Venturi Tube on a Tiptronic?

[78F350]

I know that the front connector is the vacuum line for the brake booster. Not sure why the tips take that from the aft side of the engine. I forget what the other end connects to. (Drove a Del Sol today and no Boxsters in sight.)
http://986forum.com/forums/426619-post16.html

[NewArt]

Originally Posted by 78F350

I know that the front connector is the vacuum line for the brake booster. Not sure why the tips take that from the aft side of the engine. I forget what the other end connects to. (Drove a Del Sol today and no Boxsters in sight.)
http://986forum.com/forums/426619-post16.html

Yes, when I dropped my engine last year, I remember reading in my Bentleys that I needed to "remove brake booster vacuum line", which was at the front of the left intake manifold. Except it wasn't.