- Oct 9, 2007
hi guys! i hope someone can help me. i need the header pipe measurements for a xr250, around 95 model. a mate is making up a pipe for me and im like 2000 miles from my bike! :bang: its where the end pipe (muffler can) slips over the header pipe. i know its 37mm on a xr200, but im sure the 250's bigger. i need the inside dia and outside dia where the header pipe slips into the muffler pipe..