[Phantom]

The STS remote turbo would not have an issue with the suction side as it pulls the air from under the car and being used this way would be easier than using it as forced induction as the pipe does not have to run back to the engine.

On the note of efficiency I have read that the efficiency is not that much different to an in engine non-intercooled turbo since the gases might be moving slower but they are denser (cooler) so it can apply more force. Also that keeps the charge cooler and the piping back to the engine cools it more acting like an intercooler. Most of that does not apply to this situation though.