I'm running with the stock exhaust. Earshave and jetting are the only mods so far. I contacted an old friend of mine who is also a certified Kawasaki tech/mechanic. His opinion is that I should re-install the stock air box or I will be fighting this issue for a long time. His experience is that with the pods installed that there is not enough velocity to properly lift the slides and that is why I'm not getting any power!