I have a 2001 XC 800 and just put on a MBRP can and i ran it over the weekend for the first time and i def wasn't getting full power cause a friend with the same sled and a stock pipe was running faster and at higher RPM. I was at about 7500-7700 at my highest and i know there is more power. I was running on a frozen lake and it was about 30 degrees out. Just wanted to see if anyone new about tuneing it or re-jetting it. Please let me know so i don't have to put the stock back on.