Why are the NepTune ITB tools better?
NepTune has a feature set that works nicely with ITB setups. It gives you the ability to tune with MAP only, TPS only, MAP on one set of maps and TPS on the other set (or vice versa) with switching conditions to go between the two. The dual maps offer full resolution for both MAP and TPS tuning if you need it. Whatever suits your setup/your tuner better. It also gives you FULL control of fuel and ignition for ECT, IAT, and main maps which can make cold startup on ITBs much better.