I just saw a new 310 with the prior year seat on it..... you could verify this at a dealer by swapping, but Im pretty sure that the seat pan has not changed since about '08
Old thread, but I'll resurrect it. I just got a Seat Concepts low seat for my 2013 TE310. Rode some pavement and single track last weekend. Huge difference, much more comforable and easier for me to get a foot down (I'm 5'6"). I got the seat with the pan. It took a little wiggling to get it mounted, but fits fine. Well worth the money IMO.