Hi Highscore.
Thank you very much for your response.
If I good understood all what you wrote, Opening the airbox when you
have an akra slip-on and akra mapping is not dangerous for the motor
but not optimal for A/F ratio. Right?
I'm definitely very interested with your kastl. I just want to know if
it installation is completely reversible without any trace (in case of
warranty problem)????
If I install your kastl. Must I come by you to put my bike on your dyno? or is it "plug and play"?
I will buy only the akra slip-on. (as you, I don't think the header will bring something perceptible)
Other marks of silencers as wings, leo or fmf are less expensive an
probably as much performant but akra is the only one which permitt to
be sure to keep the warranty. (I hate this type of monopoly....)
Another question :
Does the db-killer increase the richess or opposite?
One more time, thank you to share your competence and experiments.