cheap chinese copies mat - will struggle to hold 1bar of boost.
or so i thought until my mate bought a gt35 from ebay and he said it was genuine and arrived in a garrett box (he is a mechanic so does know what he is talking about). His car made over 450bhp at 2 bar so im guessing the one he bought was alright - he says there are more on there so he can get them anytime.
Its a gamble but one that may be worth going for if you can get the same as above
Ive asked for a link as thinking of getting one myself
Edit to add the new one my mate bought was a non-roller bearing gt35