What size torx bit is required to remove the front wheel hub on a Cav?

2010 Subaru Impreza WRX Limited
1999 Cavalier Z24 Supercharged
1999 Grand AM SE (Beater Car)
1997 GMC Sierra
2007 Honda CBR 600RR
2005 Honda TRX450R
 
Yes, T55.  I just replaced mine last week.  I recommend spraying the hell outta them bolts first with some PB Blaster and let them soak a good while.  You don't want to strip a Torx bit. 
97 Cavalier Z24 @ 85k
00 Cavalier Base Coupe @ 152k...rollin on 14's!
97 Grand Cherokee 5.2L@ 260k
 
Thanks guys!

2010 Subaru Impreza WRX Limited
1999 Cavalier Z24 Supercharged
1999 Grand AM SE (Beater Car)
1997 GMC Sierra
2007 Honda CBR 600RR
2005 Honda TRX450R