I believe that's the belt the Whipple and Roush kits are picking off for their drive. Snap a blower belt, and you lose AC, but the waterpump and alternator are intact. Good idea...
I do love the Watts Link. The handling characteristics of the car are unreal. As for straight line acceleration, the car launches like a rocket right now just on 275/40 summer tires. I threw so much at the car at one time that I don't know what is the biggest contributor to that whether it is Watts Link, Konis, LCA's, etc.