Yes, I did lose mpg based on the map that was loaded onto the PC-V for my bike. The consumption occurs in the lower revs mostly because that it where it is too lean. I plan to take it into consideration when I have it dyno'd.
It's going to be hard to have it both ways, good milage and performance. I'll just have to find a compromise but will never go back to the rediculous stock set-up that meets EPA regulations.
The other reason for more consumption after the PC is what can be called the wow factor. It is just so much better that you can't help it. LOL!
2012 DL1000 Adventure (Tinkerbell)
PC-V, TRE, CR8EIX , ECM, K&N, RDL, PR4, PC-8, EB H4, WERKS, Madstad 22", 17/43 gearing, AdventureTech: Fork brace, shelf, mirror extenders, SpeedoDRD, wheel spacer, Head's-Up voltage monitor, Goldwing pegs, Sonic 1.1. Wolo Bad Boy.