Ok just thinking here but maybe there are people that have already tried.
I live and ride at high altitude ! have the full clutch set up 27” 8 ply tires jbs programs in the power commander exhaust tip ((this one probably has to go just too loud ) but on level I have to have one heck of a straight road to even get to 55.
I was thinking of trying the shims for more low end I cannot see it hurting top end as I don’t have the power to top it out anyway could not top it out before the power commander ????
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