I had sent my somewhat functioning turbo ( t25 Garrett) for upgrading and rebuilding. The turbo returned was one that leaked oil. My old one didn't leak as much as the supposedly reuilt one did. I complained and they said return it so we can fix the prolem. Well, the proprieter Jin, Gerry told me that everything was in tolerence and therfore ok. I fould that I could not use that one returned to me. And so I was set ack 387.00 and it didn't include shipping. I ended up going a much more expensive route in the end.And eating the piece of junk they called a precision turbo.