If the bolt in the exhaust manifold is in the head it should be center drilled and a stud extractor used to remove the broken stud....
While you are at it, replace all the studs / bolts with new ones and make sure you use anti sieze on the threads when re-installing them...
Eagles v Collingwood...nah...I am Sydney born...more likely yo be Eels v Rabitohs....
Where you at mate?