Just took the sled out for a rip today around the ranch and the canister thats conected to the pipe turned red hot. Now the sled only has 400 miles on it so its not rust inside the canister. When I took it off and shook it there was nothing inside it moving. Could it be something inside the can that has bent over due to a back fire and its blocking the flow? The sled runs great so...don't know what this could be...any one know?