We have finished yet another AEM FIC piggyback car and are in the process of converting two more MSL-equipped cars into AEM FIC-equipped cars.
We have been helping AEM Beta-test the FIC since this time in 2007. With our help, AEM was able to dial in the FIC to perfection for the OBD2 NSX application.
I can say first-hand that the AEM FIC is the easiest, most effective setup available for the OBD2 NSX. I spent hardly any time at all to build a basemap based on simple calculations and some previous experience, and the car was ready to drive. In conjunction with a jumper harness, the car can be returned to stock in about 30 minutes, no additional wiring needed. One of my favorite features of the FIC is that the check engine light is left in-tact so that IF a problem develops, the light will tell you exactly where to look which usually cuts diagnostic time in half.
This time the lucky car is a 5,600 mile, stock motor 2002 NSX with 750cc injectors and a larger turbo than what we provide with our standard turbo kits. I was nervous at first about tuning the car to idle with 750cc injectors. However, my fears were quickly disspelled after the car fired right up to a perfect air/fuel ratio and perfect short-term fuel trims. Spending a little bit of time building a solid basemap helps tremendously, but even that task is relatively painless compared to a full standalone unit. Driveability with the FIC is IDENTICAL to the factory NSX; with no hesitation and a seemless vaccum/boost transition. Another great feature is that the factory traction control system remains in-tact. Let's just say that the 2002 could use the traction control until well into third gear 
Personally, I think 1000cc injectors could be idled without any issues. The built-in injector drivers provide exact injector control, unlike most other "piggyback" units available that simply tweak MAP signals to fool the injectors. Branding the FIC a "piggyback" is almost unfair because of what the unit is capable of. :biggrin: