The Supertech valve guide set for Audi 1.8T/2.7T engines contains manganese bronze intake and exhaust guides with an 11.045mm outer diameter, supplied as a set of twelve. Specified for those Audi turbo and V6 applications, these guides are listed with the exact OD and intended for use when that size and material match engine bore requirements.
Supertech Audi 1.8T/2.7T Manganese Bronze Int/Exh Valve Guide OD 11.045mm - Set of 12