I am currently on a mini-vacation with the family, and yesterday I ran into a guy at our hotel who was on an 07 R3 Classic. We began discussing mods and such, and I mentioned that I was considering either TuneEcu or a PCIII (leaning heavily toward the TuneECU)...and he stated he was running BOTH on his bike. He said he has a map loaded into his ECU for his exhaust and intake setup (I think he had Jardines, CAT delete and maybe an underseat K/N), and since he had a PCIII already, he took the bike to a Dyno and they refined the A/F and dialed the bike in "perfectly" as he put it. Does that make sense? Would there be any benefit to having both on the bike? His logic was that the ECU map can adequately adjust for the exhaust and mods, but since the PCIII piggy-backs off the ECU, his DynoJet tuner was able to refine it further...something that could only be accomplished on the Dyno.