not surprised... hope it didnt cause any damage man. These things can get expensive to rebuild. When swapping exhaust that is not a direct bolt-on (and even most cases there too), its best to get a programmer and tune it properly. The RZRs need a specific exhaust flow and the intake flow is dependent on the exhaust flow to function properly, since its not a proper EFI like cars have ( a car's efi will re-tune to fix the fuel ratio - atvs like ours do not ). WHat you got? 900? 1000? GOt a 900EPS myself, love it.
