I was looking into the Exedy clutch for that reason, I don't believe any of the ACT, Exedy, etc. are OE replacements at least not for what I've seen in price and OE clutch kit runs about $150, it's at least double for the kits I've priced.
I've also always had a small 50shot dry kit on my mind for a good few years now, I figure if I plan to use Nitrous as a fun toy for making freeway drives to work interesting then I'd better pony up for a tad better clutch too.
But I definately think I'm going to use the Fidanza flywheel and it only comes in 8lbs. The others I've seen appear to be lightened OE flywheels and I don't want any crap like that.