To remove those torx bolts you need a couple of things, 1/2 ratchet, 3/8-1/2 adapter, correct 3/8" torx socket and make it a good one, not one of those cheapie one piece ones, a dead blow hammer and a 3" 1/2" extension.
Put the torx socket on the adapter, adapter on the 3" extension and set it in the torx bolt you want to remove, take the deadblow and with a good solid thump drive into the torx bolt, yes, hammer it in, you are trying to get the torx bit to bottom out on the bottom of the painted torx bolt, the paint in the bottom will 'flow' around the torx bit. Then without moving it and keeping pressure on it put the 1/2 ratchet on there [lefty loosy, righty tighty ahead of time] then keeping constant pressure on it give it a good turn. The bolt should back right out.
Learned that trick from the yard manager at a jeep junkyard here in Pa.
You really need to use the 1/2" ratchet too for the added torque you can't get with even a 3/8" breaker bar, this is from experience.