Everything from pistons up have been changed by carpenter And yes carpenter is registered with tune ecu and penners map was the first they used but the throttle bodies still shut at higher revs even with them set to 100%. But it’s where the stock bikes stop making power so if you have a stock bike you wouldn’t notice this but for mine it kinda does. Was going to do a build thread once it was done and I have it back. They are shooting for their highest na hp triumph they have ever done. So a lot of trickery has gone it to it to say the least