Since this topic has come up again I was planning on putting a Fidanza or a URD Flywheel. Does the fidanza have a billet steel center or is that why URD is just more expensive because it has it and Fidanza doesn't. I know there is a CEG member that is using the Fidanza and he says he hasn't had any problems yet with it. URD, Fidanza, or the steel Flywheel from SHO, I want to try and get as much power to the wheels as possible, I'm gonna install the URD Stage 1 Clutch with the flywheel and possibly the Quaife if money permits..