when you said that you flashed the ECU was it really necessary for exhaust system? sorry for all the questions im new at this xD
Ps: I just love your bike as it is good taste, good work
I have no idea how it would run stock. It might run fine or not.
I ran it for awhile with cored pipes without flashing the ECU and it was fine.
But cored pipes aren't the same as a full system.
Ask in the Tech Forum and I bet you'll get some responses.