1st off.... your sig is way too big....
clutch... really depends on what you want... and how you drive
stock- runs about 250. I got mine from advance auto. but, i broke/bent the straps on the PP
CM1- this is a good overall clutch, can hold mostly all the bolt ons you can throw at it.... runs about 330
Shonuts HD PP w/ the 9 puck disc- this is better than the CM1, and holds more power IIRC. runs about 350 i think....
anything else would be over ****. plus they are high priced. like centerforce has a dual friction clutch that runs 600 bucks... and then there are a few others that are around that price range....
I would say CM1.. thats the best all around clutch...
but without knowing what you have planned... its hard to tell...