Ok, so you got a new motor, but the Supercharger is still the same, so it may have work done, if not just a smaller pulley.
What about the PCM? You can't tell an aftermarket PCM unless you hook up a tuner.
What about the Down Pipe, Cat, and U-bend? That's all NOT part of the engine, that's the exhaust, and not a noticable Mod to the certified mechanic. All of these are mods that have been mentioned, but have nothing to do with a motor exchange.

I'm not saying that any of this has been done, but you might want to find a local member that can check this stuff out for you. You might find that a few things suggested have already been done.