This is the exact reason why I supplied the free 300Z.bin file with the stock JDM A/F and Timing maps. It is already being run with great success on a few cars in the US btw. It was meant to be used as a starting point and a learning tool. It was not meant to be used to compete with other chips. However, just for ships and giggles, it would be interesting to see a dyno comparison between the $600 JWT, $250 Ash, and free 300Z.bin - of course performed by a neutral source.