09 wr450 mods

Hey guys had a yz250f my whole life n bought a wr450 off ,y buddy with like 50hrs. Am I able to swap my fmf4.1 pipe from the 250f to the 450f.? Also I want to super moto it, Rocky Mountain has a kit for 170$ with switches etc... Aside from that do I need the new stator and anything else mechanically?

Thank you

Not sure about the pipe. The head pipe will be too small. You shouldn't need anything other than a dual sport wiring kit for a basic kit.

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