They were the same tunnel from 2000-early 02's, late 02's and 03's were different, they were wider, and had an extruded alum. edge, a lot better. The later ones will fit, but a little bit a fab work would probably be needed. A better solution is to just have a metal shop make you a tunnel. They really aren't that hard, especially if you have the old one out as a template. Then, you can do what I did, and make way freakin wide running boards so you don't slip off it! You can buy ski-doo late model edges, but I bought arctic cat king cat platform edges because they were about half the price! It is a lot of work, but it was the best thing I ever did for my 01'!