well it's not regen caulsing the noise, my message center says when its in regen mode.
went into it at 725mi and lasted 10mi on the big road.
the noise is comeing from the drivers side of the engine, now when it starts this at 1800 rpm you can feel it start to fall on its face then take off at 2000rpm.
reminds me of a 2 stroke dirt bike, bogs alittle untill the power band is reached.