What Have You Done To Your Tdm Today?

[Chinfuk]

Took the exhaust off a spares and repairs motor bike I had off ebay, what a tough job, all the bolts were rusty and the Allen keys just span round, had to weld a bold to the old nut just to remove them. Getting the flanges off was even harder haha, had to use lots of heat and careful tapping with a hammer but I managed it phew, does anyone know the size of the nuts needed to put the exhaust back on, I have no idea where to start, I need all four. Also, would it be a good idea to replace the studs too. Hope I placed this in the right thread, cheers :-)