I have a modular style fidanza aluminum flywheel. You bolt the fidanza to the stock flex plate, then bolt the pressure plate to the flywheel. This makes it much easier to take the tranny out and put back in. The Fidanza is does weigh less than the stock flywheel by a fair amount, but not enough to compensate for the 350 dollar price tag if you ask me. If I were to do it over again, I would just drill the rivots out of the stock flywheel, replace the disk and the pressure plate, and bolt it back together.