Manual Transmission - Spec flywheel

I am about to purchase the Spec steel flywheel. at the checkout it gives me a $79 lightweight option. What exactly is this? Of course I know it will be lighter, but do they grind more flywheel material off or what?? Just curious.

Also, does anyone know of a sponsor that carries these cheaper than $249??

Thanks guys!

still kind of wondering.. Anyone ever bought a spec flywheel before?

I just recently bought a 3+ and billet steel setup and had it balanced and was surprised that it was off by only 3 grams. The machinist said that was one of the better ones he has seen. I am installing everything this weekend so I can't tell you what it performs like yet.

well, can you tell us yet how it performs? lol. back from the dead. trying to choose flywheels myself.

chris

the steel flywheel is nice, i have one.