I wanted to start a master list of various OEM part weights for the S2000. Always useful when wanting to compare to aftermarket replacements and keep track of weight of your car. Please feel free to post up any weights of parts you may have recorded and I will add them to the list here!
AP2 OEM exhaust - 56.5lbs (25.63kg) (measured by andrewhake)
OEM catalytic convertor - 9.0lbs (4.08kg) (measured by andrewhake)
AP1 OEM flywheel - 14.1lbs (6.4kg) (measured by andrewhake)
AP2 OEM flywheel - 21.0lbs (9.53kg) (measured by andrewhake)