4 screws in total. Need to find those bodykit shop to fix it for you. You have any existing spoiler? I dunno whether the Ori spoiler fittings is suitable for this spoiler or not, coz my car didnt comes with the Ori spoiler.
As you're aware, our lovely MR2 rear brake calipers have a self adjusting piston. These piston will readjust for the handbrakes as the brake pad wears off....