Well... I think this is VERY interesting!!
In this picture you can see the air deflector bolted to the front sway bar on the new Z Nismo.
This may be a good modification for the track focused 370 to get a little more air into the wheel / brakes.
If Nissan's pricing/availability it too much/too long, I'm sure one could be drawn up and 3D printed.
Next time I'm under my car, I'm going to have a look and visualize how effective it could be.
What are your thoughts?