from Iclick:
"The Rev Perf. EMS tuner is similar and works by sending your stock ECM to RP for modification. You will get back an ECM that will run closed-loop with provided wideband O2 sensors. The downside is that it costs ~$800 and has no tuning capability, so you can't tweak it any any way (AFAIK)."
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G'day Iclick

Got my EMS from Fuel Moto for $650 early this year. Best bang for the buck for me. Can accept changes in build up to 20% more (or less) power with no need to return the ECM to Rev Performance for adjustment.

I wouldn't use anything else as I hate the idea of friggin around with downloads, uploads, map changes, virtual tuning, tweaking this and that etc.
Easy ti install and works great for me-- stage 2 2009 UC.

 

If by "some auto-tuning" you mean creating a tune in some areas of the operating range, the PV and other flash-based tuners will do that. You can tune in the closed-loop area only, which is that range that is controlled by the stock O2 sensors. It is effective for that area, which is idle through the cruise range, and since most of us spend 99% of our riding time there I'd say you would have most bases covered with that capability.

Neither the PV nor any other flash-based tuner can accurately tune in the open-loop area, basically roll-on and WOT, with the stock O2 sensors. However with the optional AT-100 kit you can tune the entire operating range in open-loop, but unless you replace the WB sensors with the stock NB's you must run open-loop thereafter, as the ECM can't communicate with the WB sensors at all. This is the route I've chosen to go and it works well for me. Of course you could also weld an extra set of bungs on your pipes and run two O2 sensors per cylinder, then tune in open-loop and run in closed-loop, but most won't go that far with their tuning.

 

Thanks for all the input guys. I did call Fuel Moto today and ordered the package with the Power Vision. Before the call I planned on the JackPot header, but they are running 5+ weeks on delivery. So I waffled on just going V&H headers instead, but ultimately decided to get the rest of the package, install it and put my name othe list for the JackPots when I can get them.