Whats this Hose

[rsmith]

I have searched vagcat and here and either my search string is pants or its not listed.

Can anyone tell me what the pipe coming of the inlet mani is for and the internal diameter, i am thinging of replacing it with some shiny braided hose with some nice finishers on it?

 

[splitpin]

Brake servo vacume line

 

[rsmith]

Found it http://partmaster.com.ua/?action=ca...510&added_=AUDI Audi A3/S3/Sportback/qu. 2003


Anyone out there know what internal diameter it is?