(08-03-13, 02:43 PM)willmckeand link Wrote: I also managed to shear off 3 of the studs while taking the downpipes off, has anyone got any advise about removing them? There is some stud sticking out of the engine still, im thinking of welding a nut to the top of them.
I had this problem myself and managed to remove most of the troublesome buggers using a hammer, impact driver and stud extractor. There are several types of stud extractor and I found this to be the best option as I could really tighten it on to the stud

http://www.amazon.co.uk/Laser-4393-Impac...02&sr=8-12
http://www.halfords.com/webapp/wcs/store...yId_165572