Very nice bikes here, the family is growing.....
regards the mods......when you do full exhaust system, also open the airbox (cut the top off) - the noise is addictive
regards the ECU - if you have full system as Zard, Arrow or Termi, you can use some shops with REXXER as they have correct map for these systems and cost is just under £200, if you have mix system (some slipons+link pipes) I would go for custom map.