These Brake and Clutch Master Cylinders are manufactured to OEM specification

GMC171 Original Brake Master Cylinder Mini

GMC172 Brake Master Cylinder Mini Cooper S

AAU4969 Clutch Master Cylinder

These Brake and Clutch Master Cylinders are manufactured to OEM specification Part Number and as such are homologated for use on original specification vehicles using DOT 4 or DOT 5 Hydraulic Fluid as specified in the vehicles Handbook/Workshop Manual. The Master Cylinders are NOT homologated for the use of any other type of fluid. This includes racing fluids such as Castrol SRF Hydraulic Fluid

Importation rules regarding vehicles are very specific: Only those over 25 years in age may be brought in to the USA without compilance to Federal Motor Vehicle Safety Standards (FMVSS).