I just got my pulley and tune, along with the Evo pulley installation tool. I wasn't really excited about spending an extra $200, but as others (Fred) have pointed out - it's cheaper than repairing the blower. If you are interested in "borrowing" the tool, I am more than willing to ship it to you for the cost of postage, about $10, as long as you return it. PM me when you are interested.
Greg
Greg