TenereStreets,
How ya doing?
Hey, I'm far from a tuner expert, but I have the full arrows exhaust and the PV5 and the autotuner (with its own exhaust sensor) and the Flash to the ECU. (OEM sensors are not connected)
I'm actually ok without having the autotuner, but that is because others have done so much work building maps over the years, that the maps they have built for this configuration are so close that the autotuner probably doesn't have much to change. (a mouthful. sorry) But, I WOULD highly recommend getting your ECU flashed. IN my opinion, even with the headers, that made the biggest leap in how well the bike feels and runs. The PCV just corrects the fueling from that point.
I'll put it another way.........
If I had to give up either the PCV or the Flash, I'd give up the PCV.
Keep in mind that mine is a 2012 and the Flash DOES make a bigger difference for the older Teneres than I have heard it does for the newer ones. But a good flash really makes this bike run completely different. Then add those sweet headers and she can breath better too.
By the way, Jaxon did all mine. (Tabasco-above) And even he might disagree with me. But this bike runs fantastic with the flash and headers. It just runs even smoother with the PCV sorting out the fueling even better.