Interesting, these sparkplugs claims up to 12% increase in HP

Interesting, these sparkplugs claims up to 12% increase in HP

Are any of the other "magic plug" companys even still around from the 80's and 90's?? I never did fall for that crap, I'll stick with my old el-cheapo Autolites.. Heck, Autolites have been around since what, 1492 or was it 1776??