how do i get these off!! ???

[mrpatterson2008]

iv got an oxy-acetylene torch ,, so im going to give em some heat and then have another go,, if that dont work im gunna weld a nut on the end of the bolt and just get a socket on it,,, that'll get em out..

[AudiA8Quattro]

Why go to all that trouble?
Just buy the irwin extractors 

[dr.gonzo]

i ground mine off and replaced em, i tried bolt extractors from macine mart but they wouldnt grab so i tried grinding edges on for hours and just ended up grinding em off all together, then the rest of the bolts came out with grips once the caliper fell off.