As far as being charged for custom tunes it all depends who you got your Predator from. My dealer said that there is NO CHARGE for custom tunes unless it is some kind of radical tune, i.e. KB etc.... And for those tunes there will be a ONE time fee and after that it is free. I am putting on my Pulley with my pulley tune today. Maybe i will be able to get it on the dyno to see what happens
Dave
Dave