I just ordered a White Brothers E-series Pro-Meg pipe for my Warrior, as well as a Pro Flow filter kit and Moto Force vented airbox lid. I'm looking for advice on where to start as far as re-jetting for these upgrades...my guess is two sizes larger for the filter and airbox lid, but am unsure concerning the pipe. Should I start with three sizes larger or four, and then adjust up or down depending on how it runs? Also, will these mods require a needle jet adjustment? I ask because I read in the Tech Connection that a Warrior made in California doesn't use the standard needle jet and clip adjustment, they instead use shims to adjust the needle. Any help would be appreciated.