The 370z utilizes a ton of torque management techniques to "assist" unskilled drivers with keeping the car on the road when flooring it at speeds under 60. Since it's a drive by wire car they can make the computer do as much or as little to "assist". The tune removes all of that crap so when you punch it at any speed, you get full-throttle. I'm looking for the link I was reading a few months back. The difference between tune and no tune is like night and day, and that was with drop-in filters. When I added the cai things really started to get fun.
Osiris - Standard