I bought a cheepy, $350 ,that had a few problems with it (compressor wheel was eroded and exhaust housing was badly cracked) took it to per4manz turbos and cost about $600 to fit new compressor wheel and machine out second hand stock exhaust housing and new seals. bought some gaskets and fitted it myself , a easy job if everything comes apart ok. a bit more laggy than the stock one but heaps more pull when it gets going. went from 290rwhp at 12psi to 307rwhp at 11psi. aiming for about 350-360 at 17psi when injectors and ecu are fitted.