There are significant benefits of having a lightweight flywheel. Though it does not create additional horsepower, the flywheel does allow the engine to more rapidly transfer its power to the drive train. Due to its reduced mass, it allows an engine to have quicker throttle response and rev faster under acceleration. Conversely, under a drop throttle condition, the car will slow down quicker due to the less rotational mass at the crank.
Reduces typical turbo "lag" with turbo-charged engines.
Increases supercharger efficiency due to less parasitic drag on the crank.
Improves mid-range torque in normally aspirated engines.
Uses A36 steel for the friction surface.
Uses an OEM steel ring gear.
Offers a limited lifetime warranty.