I bought a 2002 warrior 2 weeks ago. 8 years ago I own a 2002 warrior and it had 2 to 2 exhaust. PcIII, and a k&n filter. To my memory that's all that was done to that bike. This new bike I have or new to me, has a V&H 2 to 1, Cobra fi2000, and that's all I know, except the heads have been taken off. The 2 main differences in the power of my old bike and my "new" bike is first at an idle my new bikes seems to really idle pretty rough, hit a lick, or what ever you call it. But sounds like it could have a cam in it. Maybe it's just me but a buddy of mine said the same thing. And the second big thing is in 1st gear at a 15mph roll if I Go WOT it will spin till I shift to second, and I can't recall my old bike ever doing that, plus I'm about 25lbs heavier than I was 8yrs ago. I know there is a million and one things that could be done to it, or does any of this sound normal? It has stock 200 rear tire.