FACTORY replacement Elring headgasket. Don't waste your money on Victor Reinz or equivalent headgaskets that are prone to leaking. These steel gaskets are factory replacement and the best available for your 1.8T.
VW 1.8T 20V 1996-2005 Bore: 3.268 (83mm) 0.055 Thickness MLS Head Gasket
VW VR6 12V- Bore: 3.248 (82.5mm) MLS Head Gasket
VW VR6 12V- Bore: 3.311 (84mm) MLS Head Gasket
VW VR6 12V- Bore: 3.268 (83mm) MLS Head Gasket