No, stamina has the ati pulley, I believe ex soccer does as well.

Carstedt has one as well but he went on vacation

 

Oh snap. Reading fail on my part. 07MetallicSC is right, I've got the ATI, not the MRZ. As stated in prior threads, I'd recommend steering clear of something lighter than stock. The dampener is not a place to be saving weight, and the engine needs that mass in order to keep the engine in equilibrium. Even the stock pulley/dampener becomes a liability at higher power levels/revs (the reasoning behind why ZZP doesn't give a warranty without the ATI).

If you're looking for cutting down on rotational mass, there are other places to do it. The pulley isn't one of them though, and this is coming from a guy that likes weight reduction.

 

So, bottom line is to forget about these 2 crank pulleys from what I understand.
What about the other one? The one for the alternator? Is it useful or it's a waste?