How to tell a genuine Garrett Turbo?
So, I bought a turbo and I don't know if it is a genuine Garrett turbo. The cartridge section looks like was treated with some kind of a coating and the name plate is missing (I figure it was removed for painting). Both the exhaust and compressor housings say Garrett on them. It is brand new never used, is there a way to tell if it is a real one? Markings, shapes... ??