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Well I bought a used xp seat, gas tank, trim on top of tank,trim over side brackets, side brackets from tunnel, and the back steering post braces. I cut the tank to fit and removed material so as to allow access for using original seat back bolts that were relocated to attach the rear of the gas tank that was cut to fit around the original tank. You need the xp tank because it is the mounting surface/bracket for the seat. The original seat weighed 14.2lbs and the new seat/tank mount combo weighed 12lbs