most bobcat mufflers are made by donaldson , after a few years they become available to you and me thru a donaldson dealer , at first they are oem , you can buy older machines like a 743 or 753 muffler now , a 250 i would think is still too new , have not checked on it , there is usually numbers on the muffler which is a donaldson number and will come up most of the time in there system but not be avaiiable
