WOW!!! I just bought a 2001 wr426 in california. It has the pipe and all the mods recomended. I did a lot of research on the net reading about different 4-strokes. I almost got the new yz450f. I'm glad I didn't. I had the impression that the yz model was faster, lighter, and just plain easier to ride. I plan to ride in the mountains, pismo dunes, and the desert. Thats when I'm away from my 5 acres of flat land. I've ridden several bikes over the years but the last bike I owned was a 84 xr80... lol. anyway, I got to take it out this weekend. It completely exceeded my expectations. The suspension is incredible and the power is endless. It doesn't feel like a big bike when your riding. I consider myself a experienced novice but felt completely comfortable twisting the throttle and lifting the front tire down the straight aways. fun!!!! I love this bike.