wow....it's fun stuff....response was super quick w/ this thing! it weighs about 11lbs and made the revs come up so much faster. more hp to the wheels, and you don't loose as much inertia needed to get the car moving from a stop. very good flywheel that performed well in the street and track duties

don't expect to be able to tow anything though...w/ a full car, a lightened flywheel will have some problems to build the torque to move that much weight
