The Supertech valve guide set for Audi 1.8T engines includes manganese bronze intake and exhaust guides with an 11.045mm outer diameter supplied as a set of eight. The description lists the engine family and guide OD, making this kit suitable where those specific dimensions and material are required for guide replacement.
Supertech Audi 1.8T Manganese Bronze Intake/Exhaust Valve Guide OD 11.045mm - Set of 8