Someone needs to snap this up! I just put mine on and put about 100mi on it before my pc3 died... definitely corrects speedo! Verified via radar speed sign 👌(oops.....lol, but speed was dead on!) And really does not make the bike feel any different.. definitely not down on power or torque.
Anyway.. my pulley got picked up for $75 then another $90 for local machine shop milling.. so $150 is a steal!!