120r

[miguel0713]

I'm in the process of installing a 120r on my 2009 RK.
Any advise as to remap the ECU or stay with stock program
and install a Power Commander v, which I already have???

[Ohio HD]

Your best bet would be a custom dyno tune, using TTS or Power Vision. I don't know the availability of dyno tuners for HD's in your neck of the woods though. 

[strokerjlk]

I'm in the process of installing a 120r on my 2009 RK.
Any advise as to remap the ECU or stay with stock program
and install a Power Commander v, which I already have???

Depends on the skill level of your dyno tuner .
Use whatever they suggest .