Do we really need new supercharger pulley bolts? I read one thread where someone snapped one from overtorquing. To me that sounds like the required precaution is to buy a torque wrench, not a new bolt. Has anyone had problems with correctly torqued bolts coming loose or snapping?

It can't be hard to replace. I have a bucket for spare metric bolts that usually provides what I need, but NAPA & Lowe's sell them if my bucket doesn't have it.