Well, lets see. I have probably 2.5 - 3 gal. through the engine. Its been ran in many races and practice sessions. I have yet to see the problems that you mention. Tell me what the differences are between O.S. turbo plugs and Novarossi turbo plugs please. From what I know (maybe not much) is that they seem to have the same thread size and pitch and seem to measure the same in length. I will continue to run these plugs because they work for me.

Thank you for your concerns
Regards