i know you need a hex key (allen wrench to some) for the bottom portion of the seats. As for the top, i havent looked carefully enough. Im thinking about taking them out, but i might not just because it really doesnt do much (ill just take them out for the track, and have more willpower to say no to friends who want to hitch a ride everyday).
"Jam Harder, Penetrate Deeper, Dispense Longer"
"In God we Trust, All Others we Monitor, Jam or Deceive"