Earlier, Cody Payne wrote:
>
> Quick question:
> What is the brass barbed nipple on the top of the wastegate used
> for? Seems like some hose should be attached to it?
It's not used on the UrS4/S6. One can guess that Audi sourced
the wastegate from someone like KKK, and they may have used it for
other applications too.
- Charlie