miashee

i just picked up an 03 bike. It right now has CPI pipes, cool head with 93 octane domes, and k and n filters on each carb. Im A big dirt/ mud trail rider so i want to switch to a box. If i go to a stock box with no lid and a proflo intake kit will i have to change my jetting? Also i heard cpi pipes are only good on bikes that are ported. Should i trade them for some T5's or just keep them. I also plan on getting an adjustable timing plate and v force 3 reeds next. What do you guys think?