I know from experience trust me on this, ANY kit that you get make sure you get the OEM friction disk because your going to hate your car after a few weeks if you dont. The best kit to get IMO is to get the HTG kit. Heres the link if you want to check it out.
http://hardtopguy.com/store/product.php?pr...&cat=145&page=2

 

We have sold and installed act, exedy, and hyper clutches with and without aluminum flywheels. They all worked great. The act and exdey only comes with one type of pressure plate. The hyper clutches come in single and dual diaphragm pressure plates. Hope this helps. The aluminum allows the engines to rev a lot quicker. On F/I cars we have noticed it builds boost much quicker also.

All the Best,
Max

 

look into Carbonetics clutch and flywheel package (formaly ATS), had one in my ITR loved it. BTW i ordered one for my S.

 

Let us know how you like it. I have not heard of anyone putting this in their S.

 

You will need to alter your clutch and throttle slightly no matter which one you choose because you are use to driving a 14pound flywheel, but the Findanza is the lightest at 8pounds and will offer you the most free'd up hp out of any of these and is also the cheepest. I've been running one for two years wth no issues and I never stall out even on a hill. Your engine revs and frees up more power on the bottom end now, you just need to rematch clutch timing is all. Its like learning to drive another car, you should get use to it. It has been one of the best suporting mods I have made. There is allot of bennifits to running a lighter flyweel. Less engine strain -- Your engine main bearings will last longer is another one. 8 pounds is perfect.