help broken exhaust head bolt

[wanaraceme]

sup i put a curtis sparks x-6 on the ex and i love it, it gave me great mid to top end power but i noticed it was kinda leaking a lil by the head where it connects so i tried to tighten it and the freiken bolt broke in the nut. does the bolt unscrew from the head so i can replace it or is there ne thing else i can do please help i need to get it done b4 i go ride tomorrow thanx a ****load

[UglyMotha™]

yup screws right in there just run to you local shop and pic up and new one if there's enough threads left you can put two nuts on it and lock them together to get it out or a little pipe wrench works wonders