You don't have to take it to dealer to re-flash your ECU, the performance enhancement is well worth the money, if your mechanically inclined you can remove the ECU by yourself, it would be located under the gas tank and air box which would take an hour or so to remove if you have the tools. Or you can take it to a dealership and have them remove for a small fee, Yamaha charged me just over a hundy for time and labor. I would highly reccommend it, you'll definitely feel a difference in the power, delivery and overall performance of the bike, there many members here who have had their ECU flash and would say it's the best performance mod for the money, many here go with Turbo Joe, he's a tuner and owns an FZ8 and has many tunes available depending on what mods are done to your bike, it really wakes the bike up also consider a R6 throttle tube mod. Joe charges $300.00 to do the flash, there are archives in this forum about his flash tune, so that would be good place to look, his contact information is in there, you basically tell him what mods are done to your bike ship him the ECU he reflashes it and sends it back, you install it and ride, just don't forget to unplug the wire to the O2 sensor and zip tie it to the kick stand wire, you won't get the full effects of the tune if you don't unplug the O2 sensor wire. It's well worth it, in the mod section in this forum there are reviews of his flash from other members to get a better idea of what members have done to their bikes, you won't regret it.