Ive been trying to do some research on fuel pump setups for a fuel cell, the stock xp900 pump assembly screws on to the tank and have yet to find anyone that has made a filler plate to use the stock pump, it would be really easy to make one for the 800s since they bolt on. Does anyone have pics of a xp900 pump in a fuel cell or anyone knows if the 800s pump assembly will supply enough fuel for the 900? I like the idea of making stock pump work for simplicity but may end up having to run an external pump filters regulators and spend alot more money on it...