Go to
www.uucmotorwerks.com and look at their Stage 2 clutch kit with 91-93 M5 Clutch. It adds a bit of noise (less then others on the market), but costs about the same as a factory setup. Holds more power and is well built.
Please know though that any new clutch should be balanced. CHECK MY PAST POSTS for what I went through. UUC promised to help me out, but nothing for several months. I will keep calling and Faxing until I am happy.
Product is good, but promises are empty so far.