In '03, the motor was rotated down around the swing arm pivot 8mm, and the pipe bend changed slightly in the stinger area, but not much and guys have fitted newer pipes. I have a spare GG OEM pipe from an '05 250 and its the same as my '07 pipe, GG part#s and all. The difference in the '07 fitment is the silencer bend, not the pipe, so it should fit, with some minor tweaking. The older FMFs fit so poor anything is an improvement.