Ive just a received my g42-1450 copy from pulsar turbos, literally half the price of Aeroflow and im 99.9% certain Aeroflow and VSR turbos are also built by pulsar, just with their own custom compressor housings and other specifics, sorry guys they are all chinesium.
I'm VERY impressed with the build quality externally, appears to be double balanced, I havn't fully stripped it to look inside so time will tell, for the price im not concerned if it goes bang. once in my forged bottom end ute and tuned, albeit a mild tune as clutch and fuel system aren't strong enough to handle much more than 650ishHP ill post dyno stats.