looks well in the pics, shame the spec doesn't add up though.
it'll be a tuner pulling the wool over his eyes, if you don't know you won't question.
if it feels less laggy then that'll be right for a smaller turbo.
i wouldn't part with that much on it, if it went on rollers and made the claimed power i'd buy it, seems GVFM if it's all true (not likely on a t3, unless they're machined the turbo housings to look smaller lol!).