Putting on new exhaust and snapped the bolt any ideas?

Hello I've just been putting a new exhaust on me bike and as I was tightening it from the engine end I've bloody snapped the bolt and thread bit there's about 5 mm that I can grip any ideas how to get it out?

 

Lots of WD-40, a pair of mole grips and crossed fingers. If you have a hot air paint stripper gun, heat it up before you apply the WD-40 and it may help to loosen the stud.

If that doesn't work, you need to drill a small hole in the centre of the remaining stud and use a screw extractor to remove it.

If you aren't 100% confident about this, it's best to let a garage do it.

 

Thanks mate