It's an additional part with a different part number, I got mine from the dealers for a couple of quid.
GOLF GT TDI 130 | ChippedUK ST3 Eco & Race | Greencotton Panel Filter | Koni Yellow Sport Kit | Whiteline Rear ARB | 16" Monty's | R32 Spoiler | 4 Mo Valances Colour Coded | Miltek De-Cat & Downpipe | Turbo Clean Courtesy of Innotec | DSG Air Intake | EGR Delete | CCV Vent |