Anyone got any practical advice concerning this job on an M2?
I thought that at ten years old I should replace them before they snap but am I just likely to give myself a problem for no good reason?
I'd like to know which type of extractor is best, whether to use anti seize on the portion that goes in the head and if I am right to think that you just "nip" them in?

I would suggest don't try and fix what isn't broken unless there is signs of problems with the existing studs I'd leave them well alone.
If you do want to remove them try the double nut method of trying to screw them out ie lock two nuts together on the stud and then use the underneath one to unscrew stud.

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2001 X1 2009 1125CR 2006 Uly X3 2010 Uly a fully Maz'd S1 and a 1991 RS1200 Westwind.

You don't need lock nuts, any nuts will do. Att could be one so you'll just need one more.

When they're out, have a look if they're heavily corroded. If so, run a bottoming tap down the hole and give a good blast out with WD40 etc

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If your dreams don't scare you, they are not big enough.

NEVER use easy outs

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Feros Ferio

Leave well alone. If you break one just take the head off and get it spark erroded. The easy out will just waste money and make more work. £64 for snap off easy out kit lived up to it's name. It's in the bushes somewhere near my shed.
Pete

best place for them

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Feros Ferio

2 nuts tightened together so you can turn the stud. oxy cetylene will help too

They were the parallel ones not suposed to spread the stud. They just snapped like glass. Flush. I couldn't even mark it with a cobalt drill.
Pete.