unless yours is an allen screw, you'll probably have to pry it off with a screwdriver, or if you'r lucky, push it backwards out of the slots. just be careful, you don't want to mark up the mirror clip too bad, or you'll end up buying a new one. maybe somebody has a better method
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98 GTP GMPP handling kit, HomemadeFWI, MSD coils, Taylor wires, 180 drilled tstat, TR6IX plugs, Intense STD PCM, JimmyC DP, Thrasher shift kit (mild setting), AGX/Intrigue spring setup, drilled/slotted rotors with Hawk HPS pads. Hopefully more to come