Bulk wrap. The E3 spark plugs are only more efficient at pulling money out of your wallet when you buy them. There's nothing new or groundbreaking about them, and the maker's claim that "the spark plug hasn't changed since 1904" is idiotic. I had to give them credit for at least having some valid science on their site. I called them up and spoke to the guy who answered the phone. He claims the plug was designed by Champion's retired head spark plug engineer from the 1960s, who oversees production of the plugs...in China...by a subcontractor of a subcontractor. Whee, are we havin' fun yet? It's all sizzle, no steak. All hat, no cowboy. All litterbox, no cat.
Gimmicky spark plug scams are nothing new. Back in the days of gas price wars that started at 29ยข/gallon and went downward from there, JC Witless had full-page ads hollering RUN YOUR CAR WITHOUT SPARK PLUGS! Back then they called 'em "fire injectors" rather than "E3" or "pulse plugs", but the claims, hype, handwaving and pseudoscience were (and are) just about the same.