skryla

I am going to purchase a clutch/pressure plate kit from manufactured by Centerforce in the next day or so.
Here are the particulars - BTR stroked 496 500HP, mid to high 500's TQ, M22Z Trans - 75% on highway, 20% around town and 5% (hopeful) on the strip
Two questions:
1) should I buy the DF or the DFX?
2) where should I buy it? (i.e. price, customer service, etc)

Any and all comments, recommendations and stories are welcome (and encouraged).
Thanks in advance!