Hi, I have a 98 mxz 440. I have serched for places to get performance parts for it and no one seems to have anything for the 440. I am wondering who has the best performace parts for skidoo and if any one has parts for this modle. Also dose it matter if i put something that is listed for a 97-99 mxzx 440 or even a 500 on mine (like a twin pipe).