Is anybody aware of chips for the 1.8T engine that do their magic at the low-RPM part of the torque curve? The curves that I've seen always emphasize the higher-RPM parts of the curve.

this is why torque from the factory is flat from 1750 up. There is nothing that can be done under 1750 and very little between 1750 and 2400 rpm. From then on gooooo....