Yeah, I got ripped off on one of those GT3540 Ebay turbos...it wasn't cheap either. I paid $760 & got not a 3540, but a GT2871R clone with a crappy internal wastegate. Man I was so pissed! The punks wouldn't refund my money either so I had to sit on it for a year until someone eventually bought it. My 2 cents, you get what you pay for with turbos. I got smart & ordered a custom built GT3567R from Full-Race. Yeah, it wasn't cheap, but it was worth it & worth it to do business with a reputable company!
GT3567R, Ported shroud, polished compressor, ceramic coated turbine housing.
Garbage Ebay misrepresented "GT3540R"