Originally Posted By: Zedhed
Originally Posted By: GMBoy
I put a set in my Twin Cam Harley. The factory Harley plugs, in my opinion, are not the best available. I figure I shouldn't have to replace plugs for a long time (if ever) so I'll get my money's worth. Don't expect increased power or MPG's from a sparkplug, but you will get longer life due to the Iridium.
GM, it doesn't bother you to use Japanese spark plugs in your American Iron? I agree with you that they are very good plugs, but some of the faithful might scoff at the very idea...
LOL! No, it doesn't bother me. I am not as closed minded as some may think based on my screen name and career. I figure there's more American parts on my HD than in any of my vehicles. I may not like it, but there's little I can do about it short of lookin hard at every purchase - which I do. But those stock HD plugs (Champions) really are awful.