Well after much himming and hawing over the last 3 years I'm only $300 away from ordering this. I was going to get the UPrev until got wind of this so I'm now a month away from ordering.
UpRev introduces OSIRIS - Rom Loader. Nissan/Infiniti Reflash Solution
Osiris ROM Loader Features

Easy installation - Install Osiris software CD to a PC/Laptop and connect the interface cable to the OBDII diagnostic port. No installation or wiring done on the vehicle!

Map Switching - Map Switching technology is also included with Osiris and requires no addition hardware (
vehicle must have cruise control).Using the vehicle’s cruise control buttons, you can toggle between your preselected maps. We build your tune to include a minimum of 3 different maps to be stored on the ECU
(US market). Additional map storage is dependent on model and model years. Daily driver, Drag, Track, Economy, or Valet at your fingertips.

Base Maps for 91 or 93 Octane- We work with you to select the best tuning maps from our library for your vehicle. With the large selection of after-market hardware and wide variety of Nissan models available, there are many variables that affect your tune. We work with you to find the best tune we have for your vehicle. If you change mods in the future, no problem, we'll do it again at no cost
- Top Speed Limiter
- Rev Limiter
- Idle RPM
- Target AFR
- Ignition Timing
- Electronic Throttle Control
Cipher Diagnostic Software - Data-log engine vitals directly from the ECU before and after tuning.
- Data-logging - Record and save ECU data; sample rates of 20/sec with 16 sensors.
- Real-time sensor display - Monitor data in real time
- Analytical charting - Analyze recorded data with ease.
- Diagnostic Codes - Retrieve and clear the DTCs.