Ive had their stuff in my hands. Its meh. The chineezium stuff is 100% obsolete. Taking the stuff out of the box and running it is a gamble.
Their stuff is not oe CHRAs. It is hit and miss. We had several in for overhaul within the first year. Obviously we only see the bad as we are a turbo shop but the parts inside were mediocre. The sealing rings tell a lot of the tale on turbocharger quality. Cheap ones tend to wear from where the thrust flinger or the turbine shaft groove rides on them. Good quality stuff will take many many thousands of miles for that to happen. These were all pouring oil from there being almost no sealing ring left.
Take that for what whatever it is worth. $.02