my younger bro has a 02' pro-x 440 fan, he slapped on my specialty-x can on it, sounded nearly like my machine lol. but he had it on that machine for a few hours. i told him that he'd probly burn down his engine. try it out, check the pipe and exhaust exit first. if it does fit tho, check your spark plug color, to see if ur jetting is right.
2003 Edge-X 800
Vforce 3 reeds, Powermadd Boost bottle, updated c.d.i. slp powder pro's, 1.25 predator track, fox racing clicker rear, rydefx center and skis, 1 in handle bar riser, specialty x can. 11.5 in cobra yellow tint windshield, and a sportech yellow tint lightshield.