those ebay turbos are not master power they are xs power which are chinese,those are the ones which are 60mm. i have done a lot of searches on master power and all the people who have them dont have problems. the turbo i was looking at has a turbine wheel exducer 64.26mm, major 73.91mm, compressor wheel exducer 69.09mm, major 90.93mm, turbine housing a/r .68 with a t4 inlet, compressor housing a/r .70 with a 4 inch inlet. do you think this is a big enough turbo. i think it is a good price at $590