Up for sale is a Hypertech tuner for the 370Z. Bought it off another user thinking it was the same as the G37 model.
Here's a post on the performance of the hypertech tune compared to stock and uprev on a G35:
Review Reality of a Dyno Tune>>>>> Stock ECU vs Hypertech vs UpRev - MyG37
For about a 3rd of the price for an uprev tune, you get half the mid range gains, 0-60 restriction removal, and top speed adjustability useful for valet.
Includes tuner, cable for car, and software CD. Not married to a car and ready to be installed.
Selling for 175 shipped.
Also willing to trade for sway bars, preferably eibachs, springs, test pipes, ypipe, midpipe for g37, or anything else you'd be willing to trade.