Oh dear...

[Alien6872]

Yeah the 2015 motor is different, but not the HP4 v standard S thou, that's 193 v 193 pre 2015.

 

[chorsley]

downshift is from a company in Derby called pro shift
as regards to Nivens reply have they been a new 2015 on dyno for actual dyno readout and they all vary in power figures as we all know
and if they is 6 bhp difference do you think you will notice it ? don't think so

Don't get hung up on Dyno Figures; as it will only take a changes in Relative Air Density to see that kind a BHP variance on the same bike on the same Dyno the Dyno reading is for that point in time only, I have been tuning high performance engines far to long now.... both 2 and 4 stoke engines and some engines that make 3000BHP plus (i.e. dragster engines)