Here is what Mackin released last night:
Maybe the OP would like to chime in on what a bone stock 370Z made on that particular dyno. 282whp with no baseline doesn't say a whole lot. We've seen stock 370Z's make anywhere from 259whp (our Dyno Dynamics) to 289whp (Dynojet). We know it looks great, and I can speak from our own experience that the MXP products have been very nice quality, but a better estimate on gains is always welcome