Grenon, I'm at work, so I have nothing better to do, so I'm doing a bit of searching for you. From what I can tell though, I believe the NT pump doesn't flow as much as the turbo ones, but wouldn't know for sure without the Denso part #. However, you should definitely be fine with just a regular stock turbo one at 15psi.

Here is a good list of numerous different pumps and their flow rates if you wanted to check it out though.