I know a few of the GS guys have used these with good results but haven't heard much from the SC crowd. Anybody have them installed? I'm getting major service done and I'm deciding on whether to use these or Iridium plugs.

 

ACleanSC4 has them in his car with no problems.

 

I'm using these along with Nology Hotwires...car runs sooo smooth...

 

that's because your car isn't turbo jk... please dont' hit me. i just couldn't hold back.