I guess I eat my words about running platinum plugs. Those PFR6G-11s are platinum. They are replacement plugs for the Acura NSX and the Subaru Imprezza WRX turbo vehicles so I feel confident they will work well with the s/c. The bad news is that they run around $12/each

I just went back through my kit and mine did not ship with plugs nor the s/c fluid. I didn't pull the actual s/c out of the box but hopefully it's already filled. I might try to get a Pontiac GTP s/c fluid changer kit just in case.