Now that we have our own BRZ here to play with, we spent the break-in period testing variations on the stock setup, 3rd gear for higher sample rate. That and tweaking the racerom features for friendlier driving.
Here's a virtual dyno comparison on a flat road going in the same direction...disregard the ultimate numbers, but the differences should speak for themselves. Note the one stock-ish [red] "freak" run could not be repeated; while the tuned runs were back to back consistent. This map has 2-3-4 increasing in aggressiveness, hence the increasing plots. Orange is more akin to what was seen in subsequent logs with mostly stock mapping. Can't see it here but the graph starts at 3400 RPM, ends at 7400.
Making headway but there's more room to go. Compared to the car with bolt-ons, that one is making at least 8-12 hp more everywhere with a cat-back, CAI, and overpipe.