I went with the new PC-V. I did alot of research and I chose the PC-V. Got mine for under $300 off Ebay. The PC-V was easy to install and it has the ability to add on the Autotuner also. The Autotuner comes with the wideband oxy sensors. Later on if I do any engine mods the PC-V can be adjusted to compensate for any of those mods. I just installed it, downloaded the map from PC's websight to my laptop then just downloaded it to the PC-V. I can also hook my laptop to the PC-V while the bike is running and see rpms, throttle pos, engine temp ect. ect.,:TEXAS