here is the delema I like when my powerban hits with my stock pipes honestly. I rode a shee with T6's and it takes along time comparetivly speaking but yet everyone says they are the best: but I do not know if I will like when your power comes I want a low to mid pipe but yet some top end will be nice the guy at toomey says T6's are the built for that on a stock engine, and that is what I have and do not plan on doing any mods on this shee except pipes. I ride farm ground, trails, and I will hit the dunes once a year no dragging except in a hay feild once in a while.