you cant lose any power from a flywheel...
the flywheel will let you regain some of the torque you lost from the old one.
That's what I thought, BUT I read articles saying that if the flywheel is spinning it will make it easier to move the car thus more torque.
I figure, if it's easier to make more revs you gain torque.
I'd love to read some experiences from people that have it on their celica