Hey guys I would like to buy some better pipes for my banshee. I really only ride it for straight drags and will most likely take it to the dunes once a year. It's a 4mil stroker with stock jugs with .040 over and drag ported and 20cc heads and running a set of pwk 35s. i currently have the PT high revs and I do like them if and when I take it down on the trails but would like something better on the top end. I hear alot of talk about CPI and shearers but what's with the small and big bore pipes? Does one size work better with certain mods than the other?