Are they torx though? Sure they arent Allen head screws?? i looked on parts diagram, they're the counter sunk type. Must be tight tolerances on the back of that particular model. If they're loctited, they'll be a bear to get out. IF NOT, chanced are they are just stuck tight in the aluminum hub (corrosion between steel and aluminum is a bugger..) CHANCES ARE...ya could drill the head off them and then grab em with vise grips and back em out, Or drill em deep enough to get a small easy out in them and back em out.. If you do drill them, it wouldnt be a bad idea to use a tiny pilot bit to drill the WHOLE WAY through the bolt in all honesty if you feel confident enough to do that. If you do take that route, you could then drill with a slightly larger bit to remove the head. Do this to all 4 and you'll have the rotor off. (if thas your goal..IF you hub is messed up...otherwise, just leave the rotor on the hub...and remove the caliper instead?) ANYHOW, once heads are removed, and your tiny pilot hole is still there, id attempt to back em out with an easy out OR a pair of visegrips. IF the pliers wont do the job, then you'll need to resort to some heat to loosen the loctite, and then you shouldnt have an issue removing the remaining stud.
Once removed, id also tap holes to remove any existing loctite, clean the threads of burrs, and when re-installing, put a small dab of blue loctite back on em. (i personally done use much loctite unless its internal stuff...jsut ME though..)
DID some quick research, according to info i dug up, it says they are infact a torx..i appologize.
