Hello,
I helped Brad develop and test Virtual dyno. I just had him add the BRZ and the FRS to the cars list. It works with ECUTek & BRZedit logs as of now.
Virtual Dyno can be very accurate if used properly. I have tested it again and again on a real dyno. Here is some of that testing
Virtual Dyno Comparison
I have also written an how to on using virtual dyno correctly. Located here:
How to use Virtual Dyno Properly
Most of the charts in this thread need more smoothing.