Upgrading the Exhaust on the Duke

[TheDuke2]

I have just ordered a Exaust Header of Schneider Cycles and a Carburator optimalisation kit + KN filter.
How much do you people think i will gain on this upgrade? And where will i notice the best powergain? upper ,mid or lower revs.
Currently on the bike i have the KTM y-pipe and i have removed the sparkarresters from the stock mufflers.

Link to Schneider Cycles:
http://www.schneidercycles.de/

 

[Långa farbron]

I have just ordered a Exaust Header of Schneider Cycles and a Carburator optimalisation kit + KN filter.
How much do you people think i will gain on this upgrade? And where will i notice the best powergain? upper ,mid or lower revs.
Currently on the bike i have the KTM y-pipe and i have removed the sparkarresters from the stock mufflers.

Well,I think you gone loose some of the bottomtourqe,due to the bigger diametre of the pipes.But you gone winn a bit of i back with the carbureter kit.

So my answer is middel and top revs,i gues about 2-3 hp.