Interesting question? I got to try out a few diff years at the west coast bonneville fest and there is a difference from the old and new seats. I also have had my seat apart a few times for the heated element repair.
The one thing to watch out for is the side air bag if equipped. You will want to disable the air bags before pulling the seat.
The lower frame is the easiest part to work on, move the seat all the way forward to reveal two bolts that support the lower cushions. The backof the lower cushion just lifts out with a push upward movement.
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