looking to pipe my warrior, which is better PC t4 or a bills pipe or duncan? get both for same price, would like to get a WB e-series but dont wanna spend the money, so its down to bills/PC/ and mayb duncan if i can find a slip on. but i have it down to bills or PC/ which one is better.

going iwth pro flow/KN.

and stage 2 jet kit. what increase in power will i get? also i plan to put in a stage 1 or 2 cam. the one were u need to diff valve springs. and bore it out to like a 360 or 380 or so. eventually but first the pipe, filter, jet kit, then after awhile after i get some money saved up again going with the cam. then eventually boring it out a lil bit. possibly an Alba 400 kit. or Mickey dunlops kit... but that is a few years from now.

this is my plan eventually. probly while or b4 or after i get the boreing kit done to the warrior.
my plan is to get a durable axle, 2+2, new +2 a-arms works suspeinon. and all htat good stuff and have one bad @ss warrior, i see to many modded raptors and everyting but not ever to many warriors, i want sumthin that will stand out against the rest. so i can go up to a stock z400 and kill it and show it some yamaha power!!! ne info/ help mods pm me or post..