Hello, I just got a 2009 KX250F. It had a different header pipe and muffler on it, but I put the OEM pipe and muffler back on it. There is a mark on the muffler pipe where there used to be a clamp. I searched everywhere online to find a clamp, but I can't find one. The owner's manual makes mention of a joint clamp bolt, so I assume there is a joint clamp. If anyone can help to solve my mystery I'd appreciate it! Thank you.